This now classic Copper Age book features the 1st appearance of the Professor Hulk personality, as well as the Guilt Hulk.  Dale Keown cover and art, Peter David story.  This book is graded 8.5 VF+ with white pages by CGC.  ***Please note that there is some debris which shows up in the scan (from our scanner glass).  This is not on the book or its case and is not a defect.