Former first lady Laura Bush signs copies of her memoir, “Spoken from the Heart,” at Vroman’s Bookstore in Pasadena Tuesday, May 11, 2010.

More than 500 people attended the event at Vroman’s, many standing in a line that stretched a block east along Colorado before turning north on Oak Knoll Avenue.

Noteworthy events at Vroman’s, which has hosted former presidents Jimmy Carter and Bill Clinton, “this is one of the biggest ones we’ve had,” said Alfonso Huerta, the store’s book manager.