The rise of the ‘misery memoir’ describing abusive childhoods, followed by the I-was-a-teenage-druggie-alkie-gangbanger-tick-as-appropriate memoir, pushed into the shadows an older tradition, the memoir of childhood pleasure, of charm and humour. Some of the greats — Gwen Raverat’s Period Piece, Diana Holman-Hunt’s My Grandmothers and I — continue to be enjoyed; others every bit as good — Joan Wyndham’s Love Lessons trilogy — must be snapped up secondhand.