First Steps to Mastering Japanese
If you are just beginning to learn the Japanese language, knowing a few basic grammar rules will prove to be useful.
However, Japanese is not difficult. The biggest obstacle is probably the writing system and this book will help you narrow it down.
This book, written for the Japanese beginner student, explains the basics and how Hiragana, Katagana, Kanji, and Japanese grammar in general is used; it helps you to get an overview on how to start and proceed.