暗殺教室 [Ansatsu Kyōshitsu / Assassination Classroom] #15

The instantly recognizable wide crescent grin of Koro-sensei dominates this clean, purple-washed cover — minimal yet somehow full of personality. Volume 15 of Yusei Matsui's Assassination Classroom, subtitled "嵐の時間" (Time of the Storm), promises the kind of tonal shift that title suggests. It's a beautifully restrained piece of design that lets that unsettling smile do all the heavy lifting.