A quick update, NIS America has released character designer Takehito Harada's schedule at Anime Expo.
Autograph sessions (@ NISA booth, #311)
Thursday, July 3rd: 4pm - 5pm
Friday, July 4th: 10:30am - 11:30am & 4pm - 5pm
Saturday, July 5th: 10:30am - 11:30am & 4pm - 5pm
Sunday, July 6th: 10:30am - 11:30am
Full release after the jump.
So apparently the Nia artbook from Gurren Lagann is out, and pictures of the book has surfaced online. Knowing the community, expect larger scans in the next day or two. Definitely picking up a copy of this book.
Pictures inside after the jump!