This book is good, but the Logos resource is disappointing: there are a substantial number of typographic errors. I've tried reporting the ones I've obviously spotted, but there are simply too many. A careful review and updating of this resource is warranted. Also, it would be ideal if there was a simple way to make a word list from its various sections, so that the Logos flashcard app can be used to learn the vocabulary. Manually copying/adding lemmas one at a time works, but is tedious when I'm trying to learn 2-3 of these lists a week for class.