Love, love, love this book. Between RTK, Anki, and kanji.koohii.com, I learned the (English) meanings and writing of over 2,000 kanji in 89 days. I averaged 22.9 kanji per day and studied for 136.8 hours. Of course, now that I've entered all of the kanji into Anki, I have to keep reviewing. But I love this method of learning kanji.

When I see an unfamiliar kanji, I can now break it down into radicals and figure out how to write it. Before RTK, kanji was just a bunch of scribbles. More than anything else, I believe this book gives the Japanese language learner the confidence to tackle any kanji. And since kanji is generally considered the most difficult part of learning the language, it's all downhill from here!