Excellent concise guide into some of the "why's" of the eccentricities of Hungarian Grammar, presented in such a way as to make memorization easy and fun. It's a pocket book that you can take anywhere, pick out on a train, and get a lot of Hungarian assimilation in as much or as little time as you have.
book tabulates, records, summarizes the grammatical rules of Hungarian. Pluses: can almost find a reason for any grammatical question, referring to why something is said a certain way in Hungarian, without having to refer to "...well because it's 'hagyományos' (evolved that way)". Also, grammatical concepts are well categorized. Minuses: some tables take time to interpret.
Everything is included in this book, from conjugations to participles this book is marvelous. Some things may take awhile to understand and the book could use a couple more examples. Other than that this book is a must have for anyone learning Hungarian.