An upcoming collection of Tiger & Bunny character designer Masakazu Katsura's key art and rough sketches for the series includes a poster featuring "salaryman heroes."

This release also comes with some other design materials that are the same as what came with the regular edition, but another limited edition perk is an "original color" version (designed by Katsura) of S.H.Figuarts' Wild Tiger. You can see it to the right of the normal one here:

The book itself has contains over 100 character drawings, plus some full color upgraded images from Katsura's Young Jump manga, TIGER & BUNNY In unity there is strength. A dialogue between Katsura and some of the voice actors from the anime is also included.
Tiger & Bunny - Masakazu Katsura Key Art & Sketch Collection is listed with a February 10th release date on Amazon.jp.
via Otanews