Genso Suikoden I & II Official World Guide Book

The Gensosuikoden I & II Official World Guide Book (幻想水滸伝I&IIオフィシャルワールドガイドブック, Gensōsuikoden I & II Ofisharu Wārudo Gaido Bukku) is a book published by Takahashi Shoten in 1999. It is a reference book that mainly focuses on the settings and locations from Suikoden and Suikoden II.

The book also covers characters and gameplay elements from the first two games.