- Has a history of obsessive compulsive disorder (OCD), depression and severe anxiety.
- He is no relation to DC film director Zack Snyder.
- One of his favorite graphic novels is ''Batman: Year One''.
- Has written for Batman and Superman at the same time.
- Close friends with his artist Greg Capullo.
- Worked at Disney World before he started writing.
- Grew up in New York City.
- Both of his parents and his wife are doctors.
- Has a degree in creative writing from Brown University, and a master's in fine arts from Columbia.
- Teaches writing at Columbia, New York University and Sarah Lawrence College.
- His favorite writers include Raymond Carver, George Saunders, Rick Bass, Denis Johnson, Stephen King and Joy Williams.
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