A teacher who is with you, not above you.
Molly Hardy, known in the community as Mahjong Molly, teaches from Dallas and has built one of the most serious teaching operations in the country, with a partnership with The Mahjong Line and a background in education rather than marketing. What she does exceptionally well is translate the card, the hands and the strategic choices into language a learning player can actually take in.
What sets her apart, Prim wrote, is that her teaching never performs its own authority. She sounds like a friend who has thought carefully about the card and is glad to walk you through what she noticed, which makes it easy to ask a basic question. Her work is pitched to the intermediate player, the largest group at the table and the one most in need of a clear way forward.
Written from what the letter said. Read the letter for the whole of it.