Ann Brashares is an American writer of young adult fiction. She is best known as the author of The Sisterhood of the Traveling Pants series.
Brashares was born in Alexandria, Virginia and grew up in Chevy Chase, Maryland. She attended elementary and high school at the Sidwell Friends School in Washington, D.C. After studying philosophy at Barnard College, she worked as an editor for 17th Street Productions. 17th Street was acquired by Alloy Entertainment, and following the acquisition she worked briefly for Alloy.
After leaving Alloy she wrote The Sisterhood of the Traveling Pants, which became an international best seller. It was followed with three more titles in the "Pants" series, the last of which, Forever in Blue, was released in January 2007. The first book in the series was made into a film in 2005, and a second film based on the other three titles in the series was released in August 2008. Brashares' first adult novel, The Last Summer was released in 2007. The first companion book to the Sisterhood series, 3 Willows: The Sisterhood Grows was published in 2009, and the second companion book, Sisterhood Everlasting was published in 2011.