Where to continue the Assassination Classroom manga

Assassination Classroom by Yuusei Matsui, 2012. The manga is complete at 180 chapters across 21 volumes.

• Season 1 (22 episodes): Continue the manga from chapter 74 in volume 9.
• Season 2 (25 episodes): You are caught up, the anime adapts the manga through chapter 180. The anime adapts the main story through to Koro-sensei and the graduation. Only a few bonus side stories in the final volume are left.

Read the manga: Viz.