Washington (CNN) - First lady Michelle Obama's first book "American Grown" has been in print for nearly a year and Tuesday she held only her second book signing to date.
But she had a good excuse. "[I]f you recall, when the book came out we were in the middle of this campaign, or something or other. So we were a little busy," the first lady told a crowd of about 250 people packed inside a steamy Washington, DC book store.
"American Grown" is the story of the White House kitchen garden. The publisher won't say how many books have sold in the first year but only that 175,000 are in print. Michelle Obama has said all of the proceeds will go the National Park Foundation to help fund community gardens across the country.
"[T]he truth is the idea of the White House garden is not unique," Obama told the people gathered to have her sign their books. "Community gardens are a mainstay in so many communities across this country, from rural America to my neighborhood on the South Side of Chicago."
Daniela Gram, a fifth grader at Lafayette Elementary School in Washington, DC, lined up outside the Politics and Prose bookstore early Tuesday morning with a steady spring rain falling.
"I really like the first lady Michelle," said the 10 year old whose classmates grow their own vegetable garden at the school, which is only a short drive away.
Later when she and her mom met the first lady, Andra Gram said Mrs. Obama quizzed Daniela about whether she ate her vegetables. (The answer was an enthusiastic "yes!")
Tackling the problem of childhood obesity by introducing healthy foods to kids and their families is one of the goals of Obama's initiative, Let's Move, and one of the reasons she wrote the book.
"[T]he garden was really a way to begin this conversation about how do we educate our children about the food they eat and how it impacts their body and how all of that affects their health," the first lady said Tuesday.