Anime Mook Anime and manga books A Beginner's Guide to Umineko WHEN THEY CRY : Tracing the Horrors of an Isolated Island (Monthly Shonen Gangan, May 2011 Supplement)
※Please note that product information is not in full comprehensive meaning because of the machine translation.
Japanese title: アニメムック アニメ・漫画系書籍 うみねこのなく頃に 初心者ガイド -孤島で起きた惨劇を追え-(月刊少年ガンガン 2011年5月号付録)