And what a busy boy Bo is! The book begins with Bo stealing the president's letter opener, and he's off and running for the next 25 pages. Flying off the Obama girls' swing. Running from bees near the first lady's vegetable garden. Putting green dye in the fountain for St. Patrick's Day. He even serves up a summer burger to Vice President Biden.

Dog lovers will be most amused by the fact that Bo, like most dogs, loves to stick his head out of a vehicle's window to catch the breeze. No car for Bo, though. This time Bo is enjoying the view and breeze from the window of the president's helicopter.

It all ends with Bo, exhausted by his day's activities at 1600 Pennsylvania Ave., dreaming about the lucky White House pets who have preceded him.

The $14.95 book, aimed at kids 4 to 10, has been in the works for two months, says Aryal, publisher of Mascot, which specializes in books about team and school mascots. Aryal says he wrote a story narrated by a mischievous White House puppy and added details once Bo's identity was known. (The book is also available from mascotbooks.com.)

Bo joins a parade of books capitalizing on the first puppy. Already out: Which Puppy? by Kate Feiffer, illustrated by Jules Feiffer, about a contest to live in the White House, and First Dog by J. Patrick Lewis and Beth Zappitello, illustrated by Tim Bowers, about an unnamed "portie."

In early June, Algonquin will release First Dogs: American Presidents and Their Best Friends by Roy Rowan ($9.95, trade paperback). It features 100 photographs, including photos of Bo and the Bush Scottish terriers.