This is really top quality grammar for Classical Greek. Smyth's "Greek Grammar" might be fuller but I find that this is better than Smyth if you don't want to get into the minutia of very small details about each preposition etc. It explains things well is in a very logical order so that it is easy to find things. It covers everything very thoroughly without losing you in the tiny detail. Smyth and Goodwin are the two standard grammars on Classical Greek. This will help with New Testament Greek in a big way. It has a thorough morphology, syntax including cases, prepositions, adverbs, tenses, moods, types of clauses, indirect discourse, the infinitive, the metres and everything else. It has an English index, a greek index, and a catalogue of verbs that present difficulties to students. All these topics might have 10 or 20 pages each. Its table of contents is 17 pages long so it is very detailed and so easy to find exactly what you are looking fo very easily. I highly recommend this book. I can't think of any way to improve it at all.