I am experienced chess tutor from Ukraine. I teach any clients, except professionals, no matter if they are children or adults, the language of instruction is English, Russian and Ukrainian. My rate at lichess.com is 2200, for studying my clients i use lichess.com with teaching studious there and some other chess literature as well as my own knowledge of course. For children and adults i take short breaks during the lesson to show interesting videos. It makes learning more fun and interesting for my pupils.