They waited on foot. And in chairs. As the size of the crowd grew, so did the anticipation.

They carried empty boxes or tote bags filled with other bags.

Depending on their quarry, they either waited in line at the auditorium or the line for the tent, ready to make a dash for it as soon as the cannon was fired at 9 a.m. Friday — the traditional salute marking the start of the Pequot Library’s annual summer book sale.

This year’s sale — the 55th — features more the 120,000 books, records, CDs and DVDs, making it one of the largest events of its kind in the Northeast.

In the auditorium were history books, the exotica and erotica, and the old and interesting. Across the hall in the reading room were the book sets and the rare and collectible tomes.

The tent held more recent books and vinyl albums, CDs and DVDs.

It was in the reading room that Robert Twardzik found what he was looking for: a rather large volume titled “Pictures of Horse and English Life” by A.J. Munnings.

“I’m an architect, I’m very visual,” Twardzik said, “and I use a lot of graphic images.” The book, he said, is a “very descriptive record.”

Twardzik wasn’t just a patron at the book sale. After moving to Fairfield about two years ago — he now lives on Pequot Avenue — he made his first visit to the book sale last year. He walked away with 11 banker’s boxes of books.

“This year, I’m buying and volunteering,” Twardzik said. “I’m hooked.”

The sale runs through Tuesday, under tents on the Great Lawn of the landmark library at 720 Pequot Ave. Hours and pricing are: Friday, 9 a.m.-7 p.m., double the marked price; Saturday and Sunday, 9 a.m.-6 p.m., prices as marked; Monday, 9 a.m.-6 p.m., half-price, and Tuesday, 9 a.m.-2 p.m., $5 per bag.

Proceeds from the sale help support library services and 500 yearly events and programs at the privately managed library.

Among the food trucks scheduled to be on premises are the Bodega Taco Truck Paula’s Ice Cream Truck, Shake Shack and the Phil & Tom Ice Cream Truck.

Parking is available at the Pequot Library's parking lot, the Trinity Episcopal Church parking lot, corner of Pequot Avenue and Center Street; the Southport Congregational Church parking lot, 524 Pequot Ave. and across from church or, on the weekend, in the Southport Railroad Station parking lot at 400 Center St.

"Park for Food" at Trinity Church during Saturday and Sunday in exchange for a donation of canned food or funds. Collections benefit St. Luke's Food Pantry in Bridgeport.

Visit www.pequotlibrary.org for more details about the Pequot Library’s 55th Summer Book Sale on the library grounds, 720 Pequot Ave. The library’s phone number is 203-259-0346, ext. 15.