First lady Michelle Obama will sign her book about the White House vegetable garden at a local bookstore next Tuesday.

Obama will sign one copy of “American Grown” per customer at the Politics & Prose Bookstore located at 5015 Connecticut Ave. on May 7. Doors for the event will open at 9 a.m. and close at 11 a.m.

Customers must buy a copy of the $30 book, which was published in May 2012, at the bookstore May 2 starting at 9 a.m. to join the book signing.

Obama’s book chronicles the White House Kitchen Garden, planted in 2009, which grew alongside the first lady’s “Let’s Move!” initiative to end childhood obesity. The 272-page book includes recipes, a history of gardens at the White House and health tips. Proceeds go toward the National Park Foundation.

White House staff will collect individual security details from customers in person on Thursday, and all attendees must pass a U.S. Secret Service background check.