This is an excellent reference for looking up Kanji for pronunciation and meaning.  I have an earlier 1974 edition that I have beat to hell. This looks like an updated version of the old standard.  I can't vouch for it, but I have ordered one. These books only list the characters that are in common use.  Some of the more esoteric characters used in some shikona are missing. Usually, only the 2 most common pronunciations for the character are given.