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Wants vs. Needs vs. Robots

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In his witty companion to the popular Facts vs. Opinions vs. Robots, New York Times bestselling author-illustrator Michael Rex shows us why what we want isn't always the same as what we need.

Do you know the difference between a want and a need? It can be a hard thing to understand, especially when you want something so much that you feel like you have to have it. But some things aren't essential--like jellybean tacos and groovy boots. Other things are essential--like fuel and feet to put the boots on. The robots in this book are here to show you the difference as they make trades to get some things they really want (hooray!) but give away some things they need (oops!).

This timely companion to the popular Facts vs. Opinions vs. Robots makes tricky, but vital, concepts accessible. Kids will have fun following the action and discovering this is the kind of book they really, really want to read again and again.

32 pages, Hardcover

Published March 14, 2023

61 people want to read

About the author

Michael Rex

73 books53 followers

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5 stars
44 (19%)
4 stars
106 (47%)
3 stars
60 (27%)
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10 (4%)
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Displaying 1 - 30 of 37 reviews
Profile Image for Amy.
3,439 reviews33 followers
August 19, 2023
A truly unique book written for children helping them understand the crucial difference between "needing" something and "wanting" something. I read this with my 9-year-old daughter who is really struggling with this concept right now and it opened a great conversation and gave vocabulary for us to use as we identify our everyday needs vs. wants.
Profile Image for Relyn.
4,056 reviews70 followers
April 28, 2025
I just don't like books that exist only for teaching but have no real plot. No thanks. Plus one star for the art, though.
Profile Image for Becky B.
9,214 reviews181 followers
April 21, 2023
These robots are learning the difference between a want and a need. They learn the difference first by watching what happens when a robot sacrifices his needs for his wants, and then it resets and looks at a robot protecting its needs first and being creative about bartering for things it wants.

This was really good. I would have liked one more thing to be included, showing that it is ok when you don't get everything you want. Still, what it does include is a very creative way to teach kids the difference between needs and wants with quite memorable illustrations. For kids who have a very comfortable life, this may be something they really haven't thought about much.

Notes on content: One use of the word darn.
Profile Image for Debra.
1,651 reviews
August 2, 2023
Robots are making trades for things they want and it becomes obvious that a bit of learning on wants vs needs is necessary. Michael Rex can certainly make any topic fun to share with students!

Though this is not a favorite of mine of his work, I do see the value. I am sure there are teachers out there looking for just this as they teach this topic. I will share it with my teachers and add it to my library, if they feel it will help them teach this concept to our younger students. Students like robots and will likely check this out!
Profile Image for Jared White.
1,363 reviews36 followers
April 5, 2023
A silly book about an important topic. I've read a lot of picture books in my days and I don't think I've ever come across another that covers wants vs needs...and as an added bonus this throws robots into the mix as well!

I think this could be a fun read-aloud for a preschool or lower-elementary storytime. There could be some good and fun participation while also learning about an important principle.
Profile Image for Molly.
3,225 reviews
June 20, 2023
I think it's a good concept, and I think that the attempt is sound. My only reservation is for kids with body differences- being told that you need to have a body part like an arm or a leg isn't strictly true. (That may sound like me 'um, actually...'-ing, and I guess it is. Sorry- can't help it.)
Profile Image for Bethe.
6,850 reviews69 followers
June 25, 2023
Not quite as charming as the fact and opinion book but it still does a great job identifying the difference between wants and needs. I like how the ideas of enjoyment is added to a want and the fact that you can’t enjoy your wants without the things you need. Another great book for teachers to read to help solidify this concept.
Profile Image for Anna.
981 reviews
January 17, 2025
I'll be using this book for a media literacy lesson with younger grades this coming week. It clearly illustrates the difference between wants and needs, which is the focus of our lesson for the week. I feel like the book goes on a little too long so I'll probably skip some pages, but I'm hoping this will be engaging enough to use as a discussion starter.
Profile Image for Tracie.
1,747 reviews42 followers
March 23, 2023
What happens when we don't balance our needs with our wants? Using simple, funny robot examples, this book charmingly explains the difference between wants and needs and why this knowledge is important.
Profile Image for Steph Calvert.
Author 10 books3 followers
June 22, 2023
Super great illustrations! A little too straightforward teachy for my taste, but done in a super cute way and really is a good way to hammer down the ideas of wants vs needs. I love these robots ❤️❤️❤️
3,224 reviews13 followers
July 19, 2023
Hmm ... not sure how I feel about the eye being given away. And like other reviewers said, 1. not everybody has their arms and legs and 2. you don't always get what you want. May or may not read to K, depending on how feral they are this year.
Profile Image for Lisa D.
3,166 reviews45 followers
March 15, 2023
Loved it! Cute book about the difference between wants & needs!
Profile Image for Leova Manbhat.
405 reviews4 followers
March 25, 2023
Great book to talk about the difference between wants and needs. Topic is presented well and made and written in a way that children can understand. Great book.
Profile Image for Syntha Green.
3,190 reviews33 followers
March 29, 2023
Before you read this book ask yourself a question - do you need to read this book, or do you want to read this book?
Profile Image for Mary.
3,518 reviews10 followers
May 10, 2023
By making trades for jellybean tacos, a remote-controlled platypus, and more, a robot learns the difference between wants and needs. A humorous message with a great lesson about making smart choices.
Profile Image for Yapha.
3,248 reviews105 followers
May 23, 2023
Excellent follow up to Facts vs. Opinions vs. Robots. Rex makes it fun and easy to understand the difference between and importance of wants vs needs. For all grades.
Profile Image for Jaime.
1,738 reviews8 followers
August 16, 2023
Rex has done it again! Great book!!
Profile Image for sageeee.
412 reviews7 followers
October 8, 2023
why do the robots insist on asking for their friends for body parts to trade for toys
Profile Image for Viviane Elbee.
Author 4 books59 followers
October 12, 2023
This fun book does a great job explaining the difference between wants and needs. And now that I’ve read the book, I really want a big slice of cake!
Displaying 1 - 30 of 37 reviews

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