Pollack will be at the 1499 Post Road store from 1 to 4 p.m.
Beatles songs will be performed by the duo Bob and Dave in the shop's cafe from 3 to 5 p.m., the bookstore officials said in a news release.
Pollack's book explores the band's lesser-known roots in rockabilly and Tin Pan Alley. It covers American R&B, the British Invasion, California folk and the Summer of Love, and the Beatles' influence on great pop and rock bands of the 1980s, '90s and the 21st century, the bookstore said.
The author has written three books on rock `n roll and three young-adult novels, according to the release.