This text book is a great resource for learning learning japanese. I started learning just shy of 2 months ago and realised im not getting enough education of the grammar through duolingo and other sources (not to take away from the services, they are great). A couple chapters into the text book and i am so happy with the purchase, it has already clarified so much and taught me in a clear and concise way. The book is well put together, and i really like the cultural notes and expression notes that are included in the chapters. I would definitely recommend this to anyone starting off or anyone needing to get a grasp of the grammar.