Hampden's Atomic Books is 20 years old this year. Over the last two decades, the bookstore has moved from its cramped quarters on The Avenue to roomier digs around the corner on Falls Road. It has also come to be known as the place to find glossy coffee table books, plenty of Japanese manga and signed copies of niche publications. The bookstore regularly hosts knit nights, a fiction series, author appearances and more special events. Here's a look back at Atomic Books through the years. Get your 20th anniversary T-shirts here.