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The Cool Code #2
The Cool Code 2.0: The Switch Glitch
For fans of Raina Telgemeier and Kayla Miller comes the second graphic novel in the funny slice-of-life Cool Code series. Morgan, Zoey, and Daniel discover that the popularity AI they've coded is being used to wreak mischief and destroy friendships in their school. It's up to them to fix the glitch! When the coding club finds that their app has a malicious user, Morgan, Zoey, and Daniel code an update to contend with a mischievous AI llama that’s guiding a not-so-popular kid named Marcus to cause chaos in the school. Annoying little siblings, chaotic pranks, and more abound as they race to repair the glitchy app—and their own friendships—in their school before the damage is irreversible.
224 pages, Hardcover
Published November 14, 2023
299 people are currently reading
2174 people want to read
About the author
Deirdre Langeland
12 books31 followersDeirdre Langeland has been a children's book editor and writer for more than twenty years. She currently freelances as an editor and ghost writer, focusing on science and nature explainers for young readers. Her own books include Octopus' Den and Kangaroo Island. She lives in New York's Hudson River valley.
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Displaying 1 - 20 of 20 reviews
September 23, 2025
It's not as good as the first one but nothing ever is, but it's definitely a good sequel.
May 3, 2025
hm... what about telling us more about the pranks? that would be good.
and i would have REALLY liked if the kid who did it got until at least a little trouble.
why did they take the blame? he's been nothing but mean to them.
i
just
don't
get
it.
and i would have REALLY liked if the kid who did it got until at least a little trouble.
why did they take the blame? he's been nothing but mean to them.
i
just
don't
get
it.
February 18, 2024
I really enjoyed this sequel, and being back with these characters and with this fun coding club & app.
The coding club encounters a new problem when a kid from their school gets into the cool club app, and starts causing trouble to become popular. His pranks go too far, and he starts trying to break up friendships in his effort to take their place in the “popular” level of the social standing pyramid.
Good themes throughout: is being cool worth getting in trouble? Are the things it takes to become popular ethical? Moral? Right? Making good friends with shared interests & who love you for who you are is the most important thing. Little brothers can be annoying, but they love you ❤️
I think my only issue with this series are the illustrations aren’t quite my style, and that there is sometimes more text than usual necessary.
The coding club encounters a new problem when a kid from their school gets into the cool club app, and starts causing trouble to become popular. His pranks go too far, and he starts trying to break up friendships in his effort to take their place in the “popular” level of the social standing pyramid.
Good themes throughout: is being cool worth getting in trouble? Are the things it takes to become popular ethical? Moral? Right? Making good friends with shared interests & who love you for who you are is the most important thing. Little brothers can be annoying, but they love you ❤️
I think my only issue with this series are the illustrations aren’t quite my style, and that there is sometimes more text than usual necessary.
February 4, 2024
This was great! It wasn’t as long as the first one, but I felt like the conciseness was really nice. I loved this idea that their app backfired on them in a BIG way, but they had to work together to not only break apart, but also make better choices. I enjoyed.
November 12, 2023
One graphic novel, two reviews.
Summary:
A group of three friends, an evil AI llama, and a lonely kid? What could go wrong?
The three friends, Morgan, Zoey, and Daniel, have successfully handled their Cool Code app. Or so they thought. A kid named Marcus unwittingly downloads the app, and the evil AI llama, CC, slowly manipulates Marcus to break up friendships and do big pranks. It's up to Morgan, Zoey, and Daniel to fix things before they get out of hand.
⌨️ Paige's thoughts:
I must confess that I haven't read the first book. But the good news is if, like me, you didn't read the first book, you should be able to read this one without having trouble understanding. The drawings were excellent and cartoony. The palette was sound as well.
Morgan was intelligent. She has a slightly annoying younger sibling. Zoey is a fun character. Daniel is also pretty nice. CC is sneaky and two-faced. Marcus was timid and was very mean after he met CC.
Give this book to fans of coding and a good realistic fiction story.
🖥 Laly's thoughts:
This book was a quick and enjoyable read. All the characters were great personality-wise. Zoey is beautiful, but I disliked Morgan's fashion choice. This book shows how technology and AI can ruin people's lives and relationships. It shows that it is essential to disconnect from technology because it doesn't always tell you to do the right things.
I used to love llamas!
This book is unique, excellent, and creative, with a critical theme.
Happy Reading, Paige & Laly ❤️ 📚 💥
Thank you, @harperkids @theshelfstuff @clarionbooks @harperhalley for sharing this epic graphic novel with us!
Summary:
A group of three friends, an evil AI llama, and a lonely kid? What could go wrong?
The three friends, Morgan, Zoey, and Daniel, have successfully handled their Cool Code app. Or so they thought. A kid named Marcus unwittingly downloads the app, and the evil AI llama, CC, slowly manipulates Marcus to break up friendships and do big pranks. It's up to Morgan, Zoey, and Daniel to fix things before they get out of hand.
⌨️ Paige's thoughts:
I must confess that I haven't read the first book. But the good news is if, like me, you didn't read the first book, you should be able to read this one without having trouble understanding. The drawings were excellent and cartoony. The palette was sound as well.
Morgan was intelligent. She has a slightly annoying younger sibling. Zoey is a fun character. Daniel is also pretty nice. CC is sneaky and two-faced. Marcus was timid and was very mean after he met CC.
Give this book to fans of coding and a good realistic fiction story.
🖥 Laly's thoughts:
This book was a quick and enjoyable read. All the characters were great personality-wise. Zoey is beautiful, but I disliked Morgan's fashion choice. This book shows how technology and AI can ruin people's lives and relationships. It shows that it is essential to disconnect from technology because it doesn't always tell you to do the right things.
I used to love llamas!
This book is unique, excellent, and creative, with a critical theme.
Happy Reading, Paige & Laly ❤️ 📚 💥
Thank you, @harperkids @theshelfstuff @clarionbooks @harperhalley for sharing this epic graphic novel with us!
January 10, 2024
Library copy
After accidentally creating a weird llama who tried to engineer Zoey's social life as she transitioned to public school from home schooling in The Cool Code (https://msyinglingreads.blogspot.com/...), Zoey, Morgan, and Daniel are pleased to have finished the school database for the principal, but she is not happy that they have created a social network instead of something simpler, and she asks them to take away the connective functionality that she doesn't have time to administate. In the meantime, Marcus logs onto one of the computers they used to create the Cool Code and is greeted by the llama, who sends him on a horrible journey to "popularity" but having him spray paint floors, be mean to people, and generally be obnoxious and disruptive. The coding team find out and try to stop him, but get in some trouble themselves.
We certainly need more middle school students interested in coding instead of baking cupcakes as a career, so this is a good start. I also enjoyed the sub plot with Zoey's little brother being obnoxious until her hairdresser (fixing her hair after her brother cuts some of it off while she's sleeping) tells her that if she spent more time with the annoying sibling, he might be appeased. The style is a little different from other graphic novels, and I liked the bright colors.
After accidentally creating a weird llama who tried to engineer Zoey's social life as she transitioned to public school from home schooling in The Cool Code (https://msyinglingreads.blogspot.com/...), Zoey, Morgan, and Daniel are pleased to have finished the school database for the principal, but she is not happy that they have created a social network instead of something simpler, and she asks them to take away the connective functionality that she doesn't have time to administate. In the meantime, Marcus logs onto one of the computers they used to create the Cool Code and is greeted by the llama, who sends him on a horrible journey to "popularity" but having him spray paint floors, be mean to people, and generally be obnoxious and disruptive. The coding team find out and try to stop him, but get in some trouble themselves.
We certainly need more middle school students interested in coding instead of baking cupcakes as a career, so this is a good start. I also enjoyed the sub plot with Zoey's little brother being obnoxious until her hairdresser (fixing her hair after her brother cuts some of it off while she's sleeping) tells her that if she spent more time with the annoying sibling, he might be appeased. The style is a little different from other graphic novels, and I liked the bright colors.
February 21, 2024
Yay for sequels! Yay for books that feature coding! And yay for great middle-grade content & themes!
I really enjoyed this sequel, and being back with these characters and with this fun coding club & app. The coding club encounters a new problem when a kid from their school gets into the cool club app, and starts causing trouble to become popular. His pranks go too far, and he starts trying to break up friendships in his effort to take their place in the “popular” level of the social hierarchy.
Good themes throughout: Is being cool worth getting in trouble? Are the things it takes to become popular ethical? Moral? Right? (Love how they visit the library to check out books on world religions, philosophy and ethics!) Making good friends with shared interests & who love you for you is the most important thing. Little brothers can be annoying, but they love you ❤️
I really enjoyed this sequel, and being back with these characters and with this fun coding club & app. The coding club encounters a new problem when a kid from their school gets into the cool club app, and starts causing trouble to become popular. His pranks go too far, and he starts trying to break up friendships in his effort to take their place in the “popular” level of the social hierarchy.
Good themes throughout: Is being cool worth getting in trouble? Are the things it takes to become popular ethical? Moral? Right? (Love how they visit the library to check out books on world religions, philosophy and ethics!) Making good friends with shared interests & who love you for you is the most important thing. Little brothers can be annoying, but they love you ❤️
March 13, 2025
3.5 stars. I didn't like this as much as the first book, but it was still above average in the middle grade graphic novel sect. This follows the same characters from the first book, but with a focus on Morgan (one of the "unpopular" girls that helped Zoey develop the cool code app). There is a boy named Marcus/Mark that wants to be popular, but he has been uncool since Kindergarten. He gets the app and the suggestion for how to be popular is to be a prankster and trouble maker. He starts bringing havoc to existing friendships and the whole school in general and the coding crew tries to alter the app and stop him before he does something irreversible. Like I said, this was entertaining but didn't have the same unputdownable quality of the first.
July 2, 2024
I really enjoyed reading this but I was not a fan of that ending.
Ok, if it was me I would have just let him face the consequences of the problem that he made and caused himself instead of me getting in trouble for the mess he made himself.
I mean I understand that they created the app in the first place but they was not the ones who pulled all the pranks and caused all the problems that happened at the school. He choose to do all those things himself just to be cool. I'll admit they that they should have deleted the app and not kept it going but Instead they took the blame for everything that he did and he got off scotch free with no punishment.
Ok, if it was me I would have just let him face the consequences of the problem that he made and caused himself instead of me getting in trouble for the mess he made himself.
I mean I understand that they created the app in the first place but they was not the ones who pulled all the pranks and caused all the problems that happened at the school. He choose to do all those things himself just to be cool. I'll admit they that they should have deleted the app and not kept it going but Instead they took the blame for everything that he did and he got off scotch free with no punishment.
August 5, 2024
Reading 2024
Book 134: The Cool Code 2.0: The Switch Glitch by Deirdre Langeland
Had to grab the second book in the Cool Code series since the first one was enjoyable. Thanks to the library for having both available to borrow.
Synopsis: The second graphic novel in the funny slice-of-life Cool Code series. Morgan, Zoey, and Daniel discover that the popularity AI they've coded is being used to wreak mischief and destroy friendships in their school. It's up to them to fix the glitch!
Review: Another good installment to the series as the same three friends join together to shut down their app when it is inadvertently found by a sixth grader. My rating 4⭐️.
Book 134: The Cool Code 2.0: The Switch Glitch by Deirdre Langeland
Had to grab the second book in the Cool Code series since the first one was enjoyable. Thanks to the library for having both available to borrow.
Synopsis: The second graphic novel in the funny slice-of-life Cool Code series. Morgan, Zoey, and Daniel discover that the popularity AI they've coded is being used to wreak mischief and destroy friendships in their school. It's up to them to fix the glitch!
Review: Another good installment to the series as the same three friends join together to shut down their app when it is inadvertently found by a sixth grader. My rating 4⭐️.
October 7, 2025
I was excited to read this sequel, and it provided a good storyline. As with most sequels, didn't quite live up to the original. I liked the storyline and following Morgan around, but Marcus's storyline wasn't my favorite. He didn't strike me as the type of kids who would start doing bad things, and I really didn't like that he didn't get into trouble at the end.
Good for fans of the first book, but I couldn't quite draw a moral out of this one as easily. More like an adventure story.
Good for fans of the first book, but I couldn't quite draw a moral out of this one as easily. More like an adventure story.
November 3, 2025
Great sequel to a middle school book that makes you think
This book has a lot to say about the price you pay for popularity. Marcus is a good kid at heart but he crosses a line in trying to be "cool" and he can't seem to find his way back. I love it that it's kindness and decency to others that saves Marcus in the end. A fun book that also gives you a lot to think about. Highly recommended for kids who like graphic novels.
This book has a lot to say about the price you pay for popularity. Marcus is a good kid at heart but he crosses a line in trying to be "cool" and he can't seem to find his way back. I love it that it's kindness and decency to others that saves Marcus in the end. A fun book that also gives you a lot to think about. Highly recommended for kids who like graphic novels.
November 14, 2023
This second volume continues the adventures of these middle schoolers focused on friendship, acceptance of oneself and others, real friends vs cool trendy, taking responsibility for mistakes of the past and current ones, forgiveness, dealing with younger siblings, coding and school clubs.
January 3, 2024
I really enjoyed this story, and the commentary on what "being cool" is was very interesting.
January 20, 2024
Eh, it was alright I liked the first book a lot more! It was just boring and slow paced.
December 6, 2024
Even more fun with middle school and wayard apps!
November 5, 2025
yessss 5 starsssss
This is an amaizing book I love the illustrations.i love this book because it’s illiustrations and words are the best!
This is an amaizing book I love the illustrations.i love this book because it’s illiustrations and words are the best!
May 28, 2025
I liked the first book best, but I loved having a second one to follow up. I would definitely read future ones if more come out :)
May 4, 2024
I wanted to like it more, and I really tried but cmon. This is just a reskin of book one with a new protag. They should really give new challenges in the next book instead of stopping C.C. again. I do think this is the better book however and you also don't need to read book 1 to read this one. however it would make a little more sense if you did.
Displaying 1 - 20 of 20 reviews