Nyx is a new fuzzing engine that allows you to harness and fuzz complex, stateful targets. By snapshotting a whole VM and being able to reset it to a clean state many thousand times per second, Nyx allows you to fuzz complex stateful targets such as browsers, operating systems or even hypervisors with zero hassle.

This is a pretty neat read. Has information on writing fuzz tests, setting up tooling (including AFL), structured fuzzing, and ways to make your fuzz tests produce fancy output only when reproducing a failure case ^.^

Tools and Techniques for Generating Software Tests

by Andreas Zeller, Rahul Gopinath, Marcel Böhme, Gordon Fraser, and Christian Holler

A great introduction to fuzzing. Does not stop at the basics providing a glimpse into the broad spectrum of techniques, approaches and topics.