Tuttle Japanese for Beginners: Mastering Conversational Japanese by Sachiko Toyozato
Thousands of people need to learn to communicate in Japanese for practical reasons, and cannot dedicate the many years it takes to speak formal Japanese correctly. This book is for people who want a functional knowledge of spoken Japanese. With realistic dialogues that reflect situations you might encounter in Japan, comics to make learning easier, and many practical examples, it will help you to become conversant in the language.