If you plan to hit the toy store this weekend, you probably won't even notice its not there. Back in the late 1960's, facing focus-grouped competition in the toy business, the A.C. Gilbert Company threw in the towel after having sold 30 million erector sets. If the erector set is largely forgotten, then the story of its inventor was almost lost. Until writer Bruce Watson started doing research on a toy he'd received as a child. In his book "the man who changed how boys and toys were made", Watson tells the story of A.C. Gilbert, a man who sold novelties before his epiphany in 1911.