Mark O'callahan
11 ratings (4.18 avg)
0 reviews

Mark O'callahan

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Mark’s Bookshelves


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Mark’s Year In Books

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Mark’s 2025 Year in Books
Take a look at Mark’s Year in Books, including some fun facts about their reading.
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Mark’s Friends (12)

Hannah
Hannah
1,149 books | 222 friends

Adam Mills
Adam Mills
0 books | 9 friends

Stephan...
Stephanie Liptak
119 books | 93 friends

Eiad Sayed
Eiad Sayed
1 book | 165 friends

Jake Dyer
Jake Dyer
4 books | 37 friends

Janice ...
Janice Blau
1 book | 6 friends

Rebecca...
Rebecca Bain
14 books | 29 friends

David M...
David Monhollen
5 books | 26 friends

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Favorite Genres

Comics, Crime, Fantasy, Graphic novels, History, Science fiction, Suspense, Thriller, and Young-adult


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