In which John continues the discussion of JD Salinger's Catcher in the Rye. This week John reads the novel with Salinger's life story in mind. John explores how Salinger's war experience, educational background, and romantic life inform the events of Holden Caulfield's life. How did Holden get to be such a whiny, self-absorbed teen? While it's not a great idea to read novels too biographically, Salinger's life surely informed Holden's. Watch on to get an idea just how much.

• John Green