John Leavitt is a writer and cartoonist whose work has appeared in the New Yorker, The Awl, The Toast, Marvel Comics, and more. His work can be found at <a href="http://leavittalone.com/" and he can be found on Twitter @Leavittalone.
I’m going to say something a reviewer should never say about a series still in development: Berlin is a great book. We’re only up to book two [Berlin Book One:…