Nilitsu's About 18 Songs 2 captures girls with headphones in a variety of surreal scenes and fan art illustrations. Every girl is in some way involved with music, be it through listening or playing it, so this short doujinshi has an easy to follow theme overall.
Miki Miyashita's Raisonne IV was a hard cover sequel to Raisonne III with new illustrations and a larger B5-sized format. Raisonne IV already really showcases how Miki Miyashita's style has grown, with better coloring and more proportional character designs. There's a mix of fan art and original works in the art book as well, ranging from Vocaloid to Code Geass.
CARNELIAN's Benigyokuzui Vol. 30 is filled with all new illustrations and pays tribute to several recent anime series, including ones that are guy-centric. Released for Comiket 80, it includes fan arts from Blue Exorcist, Tiger & Bunny, No.6, [C] - Control, Mawaru Penguindrum and several more.
Connection: Madoka Magica Illustration Book is a project led by Purinpurin (プリンプリン) that includes illustrations from eight different artists. And all of that sounds good in theory, but there's only one illustration by each artist, making it a rather short collection ^^ But, it was released for the one day event Magi Madoka ONLY - Mou Nanimo Kowaku Nai (魔まマ オンリーイベント～もう何も恐くない～) so there wasn't a lot of turn around time.
nattoli.net is a blog of anime art book, magazine, and doujinshi reviews. In the mix you'll also find wallpapers, opinions, buying tips and my thoughts on collecting art books.