Here's the cover to Satsuki Igarashi's Chipmunk Cheeks book. It's different than what had been advertised in Newtype a few weeks ago. (Amazon.jp for larger image). It will be released June 10th.
And for those who are interested in the other VOGUE NIPPON x Comme des Garçons The Art of Manga T-shirts. Mainichi has photos of all the collaborations.