Despite the variety of graded-reader (GR) titles in the major European languages, in their search for a “genuine” reading experience many curious learners and teachers peek beyond these GR at authentic literature. Although “authentic” books might seem incomprehensible for Japanese low-to-intermediate-level learners of German, this search is worthwhile because there are few truly low-level GR available. A previous book analysis of the Gruffalo and the positive feedback from students concerning the enjoyability of such a challenging book further fuel prospects of authentic texts. Considering the Japanese setting this study analyses Manga and children's books for their suitability as extensive reading materials. Keeping an eye on the balance between supporting factors such as pictures, familiarity and shorter idea-units on the one hand, and the challenging grammar and vocabulary on the other, we will present book analyses trying to map out strategies to identify appropriate reading material.