Their personalities and approaches to art were in many ways totally different, but this, no doubt, was part of the attraction. For Roth the collaborations were always a challenge, a fightalbeit friendly. Hamilton saw them as joyrides, full of surprises, in which he was carried along by Roth's "meticulous dexterity" and "creative energy."
Their collaborations included The Copley Book, Collaborations of Ch. Rotham, Interfaces, and Intercases, which are among the pieces reproduced here in full color. 750 color illustrations.