An absolutely essential resource for any serious student of Japanese. Well worth the investment (it's a bit on the expensive side - try to find it used if you can). All of the jouyou and jinmeiyou kanji are in here, and then some, with tons of useful words and compounds to accompany each character.

Note that if you're not familiar with the concept of stroke order, you may have trouble using this book, as that's how it's organized.