Hiero the Tyrant and Other Treatises by Xenophon
It may be hard to tell since I didn’t really review it, but I loved Anabasis enough that I was eager to read more from Xenophon right after finishing it. He’s one of the fortunate Classical authors to have had many of his works survive to the present day, so there’s plenty to choose from. His Socratic dialogues seemed like an obvious next step, but I’ve decided to put that on hold until I finish Plato’s.