Slightly cheeky of me to count this book as 'read' in that the first half is purely a vocabulary list of greek words ordered according to their frequency (Which I am working through on Memrise). But appendices I and II are fantastic, on the Indo-European family of languages, and the use of prepositions in composition with verbs respectively. The others I found less helpful, but only because I'm such a beginner student of the language. Still, anyone wiling to learn their principle parts and obscure second declension feminine nouns I imagine will be greatly helped by this book. I expect to return to it frequently.