Free!-Eternal Summer- Official Fan Book

'''TV Anime Free! Official Fan Book' (「Free!-Eternal Summer-」公式ファンブック Free!-Eternal Summer- Koushiki Fanbukku) is a fan book of the Free!-Eternal Summer-'' anime.

Summary
Similar to the fan book from the first season, the book contains character introductions for both main and minor characters, as well as episode plot explanations, staff commentary, cast commentary, and opening & ending theme commentary.

The book also contains three pin-up posters; each containing a pair of main characters (Haruka Nanase & Makoto Tachibana, Nagisa Hazuki & Rei Ryugazaki, and Rin Matsuoka & Sosuke Yamazaki).