The list author says: "This is a list with the Japanese language texts that I have found most essential for learning. Add to this a good denshi jissho and you will pretty much be covered for anything."
"Volume I of important series that explains grammatical concepts in more detail. This set is important in providing kanji/kana examples, with romaji, and accompanying english translations. Great for helping you to think about how to translate as well."
"Great book of idioms in kanji with romaji and translations. Helpful in building your colloquial Japanese. That said, my only criticism of this book is that the author takes way too many liberties in his English translations of the example sentences."