I went into this book having no clue about its structure and John Green (whose vlogs with his brother I used to love growing up) ended up making me interested in so many things that I never thought I would be. A few times, while listening to the audiobook, I'd reach for Google/Wikipedia for extra references to the topic of discussion! Sometimes my engagement did dip, but occurrences of that were few and far in between. I really enjoyed the memoir aspects that were weaved into this too, and having John narrate the audio himself was fantastic.