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Jack Koester
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Jack Koester

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Invent Your Own C...
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by Al Sweigart (Goodreads Author)
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Fundamentals of N...
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2026 Reading Challenge

Jack’s Year In Books

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Jack’s 2025 Year in Books
Take a look at Jack’s Year in Books, including some fun facts about their reading.
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Jack’s Friends (7)

Ellen K...
Ellen Koester
2,267 books | 44 friends

Ian Carter
Ian Carter
279 books | 7 friends

Colton ...
Colton Hubbell
191 books | 5 friends

Reese K...
Reese Koester
152 books | 11 friends

Lindsey...
Lindsey Brooks
10 books | 4 friends

Christi...
Christian Avery
35 books | 3 friends

Chloe K...
Chloe Koester
16 books | 3 friends



Favorite Genres

Biography, Classics, Fantasy, Fiction, Non-fiction, Science, Science fiction, Suspense, and Thriller


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