The best basic vocabulary book to learn and review it regularly. Please note that the grammar is not explained what amounts to a great beginner to learn stupidly compound words, times and particles. I advise you to take a free basic grammar. I saw that in the same edition was out, dekita I will also try. Its only flaw is impractical size and fragility, I bought one because of that, mine has pages that are torn, I fail to understand that continuous editor out his books in this form.