There are 62 LEGO bricks for every person in the world, and at age 30, Jonathan Bender realized that he didn't have a single one of them. While reconsidering his childhood dream of becoming a master model builder for The LEGO Group, he discovers the men and women who are skewing the averages with collections of hundreds of thousands of LEGO bricks. What is it about the ubiquitous, brightly colored toys that makes them so hard for everyone to put down?

In search of answers and adventure, Jonathan Bender sets out...