Book excerpt: Based on the popular "Design Issues" column in Communication Arts, this anthology of brilliantly-conceived mind-teasers explores how design communicates with, rubs itself against, and sometimes stumbles around the "real" world. Here are some of the column's most intriguing and provocative selections, taken from an unorthodox mix of over 20 contributors, covering a range of subjects from designing a corporate identity to the philosophical dimensions of art. Upbeat and entertaining, it's sure to capture the attention of artists, illustrators and designers