Infinite Crisis Companion by Bill Willingham, Gail Simone, Dave Gibbons and Greg.

A new volume presenting the tales that led into and out of INFINITE CRISIS! Collecting DAY OF VENGEANCE: INFINITE CRISIS SPECIAL #1, RANN-THANAGAR WAR: INFINITE CRISIS SPECIAL #1, THE OMAC PROJECT: INFINITE CRISIS SPECIAL #1, and VILLAINS UNITED: INFINITE CRISIS SPECIAL #1.