I`ve already taken two years of Japanese, but had quit because I was always behind and it was always too confusing. I decided that I should try again, and ordered some books so I could go at my own slow pace. I particularly have problems with particles, and decided this book would help with my problem. This is not a complete list of all the particles, so it would help to also order "All about Particles" if you aren`t sure you`ll be able to pick it up through your curriculum. I do not recommend getting only this book as your end all Japanese reference, as it really works best as a supplement to another course, such as busuu or a textbook. I like that the book really compares different similar particles, but it is not the best choice if you learn best from charts and other visual aids, as there is a complete lack of those. (I wish there was a Venn diagram to illustrate the similarities and differences!) This is also a great reference in how the table of contents are set up, as it shows particles in useful groups like telling time, or telling directions. I do like the quizzes to help review lessons, or to check what you still need to learn. I hate the inclusion of Romanji, and I really would have proffered if the phonetic version of the sentence (each sentence in the examples are listed 3 times, in with kanji, romanji, and English) had been in hiragana. I think I would have liked to get this book the very first lesson of Japanese I took, to avoid all my frustration, so I think this really would be great for a beginner or intermediate student. I think, if you were closer to fluent, it might be more useful to get "All about Particles" as a sort of particle dictionary for infrequent look ups to remind you if you forget the meanings or proper choice in a sentence.