As the chief official White House photographer for President Obama, Pete Souza spent eight years in the "room where it happens." He has the stories — and the pictures— to show for it: from playing cards with POTUS on Air Force One to photographing the Situation Room during the raid that killed Osama bin Laden. No one, with the possible exception of the First Lady, spent more time with Barack Obama during his presidency. Plus, Pete reflects on his formative years outside Washington, including a harrowing, snowy trek on horseback to document the fall of Kabul, Afghanistan.