Proving that corporate CEOs are indeed clueless, that PowerPoint presentations are at best perfunctory, and that the Office Nemesis is an omnipresent force to be reckoned with, Dilbert creator Scott Adams offers his 29th comic compilation all in four-color&#151;collecting all cartoons published from June 19, 2006, through March 31, 2007.<P>Dilbert continues to be the voice for the embattled cubicle-dwelling Everyman. With best-friend Dogbert, and a veritable who's who in accompanying office characters ranging from the Boss and Wally to Alice and Catbert, Dilbert offers a reflective critique of corporate.