■ Perceptiveness (Gentosha Shinsho na-4-1) by Shunsuke Nakamura ※ Stains on the top edge Publisher: Gentosha Published: May 2008 Format: 213 pages, 18cm Series: Gentosha Shinsho na-4-1 Price: 740 yen (excluding tax) ■ World Problems You'll Be Ashamed Not to Know, 7 (Kadokawa Shinsho K-79) by Akira Ikegami ※ Stains on the bottom edge, side edges, and back cover Author: Akira Ikegami Publisher: KADOKAWA Published: May 2016 Format: 287 pages, 18cm Series: Kadokawa Shinsho K-79 Title of Volume: The New Imperialism of the G-Zero Era Price: 820 yen (excluding tax)