You may have noticed when using your "electronic dictionary" that sometimes you'll enter a word and 2 or even 3 kanji pop up - ALL WITH THE SAME DEFINITION AND THE SAME PRONUNCIATION! And you wonder, "Which am I supposed to use?" You have run smack-dab into one of these Only In Nihongo boondoggles: DUPLICATE KANJI!
For example, 堅い、硬い、and 固い are all かたい and they all MEAN different nuances of 'hard.'
As far as I know, there is nowhere - no book, no website - that has listed and dealt with this category of words. So I made an APPENDIX that explains all the nuances.
KANJIDAMAGE