Something for the person who taught them

Covers for the person who taught somebody something. Most of them carry a role - teacher, teaching assistant, mentor, head teacher, lecturer - and every one of those is a word you can change, so a deputy head, a coach or a driving instructor gets the same cover with their own title on it. What differs between them is the voice: a dictionary entry, three blunt words, a line in handwriting, or a child's drawing engraved as it was drawn.