Dear Hank & John

How do I learn to fart? Do I dream of invisible sounds? Can you use a vacuum inside a vacuum? What does "keep an ear out" mean? Why are hardcover books so expensive? Hank and John Green have answers!If you're in need of dubious advice, email us at hankandjohn@gmail.com.Join us for monthly livestreams and an exclusive weekly podcast at patreon.com/dearhankandjohn.Follow us on Twitter! twitter.com/dearhankandjohn