In his youth, he spent much time in the Carnegie library in Waukegan, reading such authors as H. G. Wells, Jules Verne, and Edgar Rice Burroughs, creator of Tarzan of the Apes.[13] He loved Burroughs' The Warlord of Mars so much that at the age of 12 he wrote his own sequel.[14] The young Bradbury was also a cartoonist and loved to illustrate.