Ahead of Barack Obama’s memoirA Promised Land being released this week, the former President is taking the time to honor the people he’s dedicating his upcoming book to: his family. Recently, Obama shared a beautiful tribute to his girls, Malia and Sasha, on his Instagram page and it has us feeling a little emotional. (Also: This sweet throwback photo of the Obama family — look how little the girls are!) Take a peek at his post below.