With his new book called “Howard Stern Comes Again” – two decades after the off-the-charts sales of “Private Parts” and “Miss America” – Howard Stern, the Shock Jock of the Western World, may disappoint those who expected his new memoir to be as shocking. But the old “poster boy for doing everything offensive,” as he once described himself, delightfully surprises . . . and charms. Though not to worry, he’s still outrageous. “Howard Stern Comes Again,” two years in the making, succeeds as a collection of approximately 50 celebrity interviews selected from over 1500, some his favorites – he’s often asked. Most are taken from interviews he did after he left government-monitored commercial radio 13 years ago for satellite radio, which did not censor him. The wonderment here is how incisive and empathic an interviewer Stern is. No surprise that 40% of his listeners are women. The book, a handsome production, succeeds not only in showing what Stern gets his subjects to disclose but also in