OBOB is back!

New books, battles, and games for 2026-2027.

16 Books4,612 Questions

Explore the books

Battles

Solo battle

Practice at your own pace

Read and answer OBOB questions on your own, without time pressure.

Play solo

Friend battle

Practice a realish OBOB battle

Have a friend or parent read timed questions aloud to you or your team.

Play friend

Mock battle

Coaches and parents, this one is for you!

Moderate a live in-person battle between two teams.

Play mock

Solo battle

Practice at your own pace

Read and answer OBOB questions on your own, without time pressure.

Play solo

Friend battle

Practice a realish OBOB battle

Have a friend or parent read timed questions aloud to you or your team.

Play friend

Mock battle

Coaches and parents, this one is for you!

Moderate a live in-person battle between two teams.

Play mock

Games

Cover Glitch

A computer error dropped the author names from the books. Help fix it.

Play Cover Glitch

Zoomies

Rapid fire "in which book" questions.

Play Zoomies

Author Match

Flip cards to pair every book with its author. Fewer flips, better rank.

Play Author Match

Daily Crossword

Coming soon

A new puzzle every day. Solve it together with your team.