More reading
- Tae Kim's Guide to Learning Japanese: Honorific and Humble Forms
- imabi: Honorifics I: 敬称 I: ～さん, ～様, Etc., Honorifics II: Standalone 敬称, Honorifics III: Nouns, Honorifics IV: Adjectives & The Copula, Honorifics V: Light Keigo, Honorifics VI: Regular Verbs, Honorifics VII: Irregular Verbs I