Sarah Shin shines a welcome light on a vital, and largely hidden, area in the preparation of English language teachers - those who begin their TESOL training as they move towards retirement from other careers in varied professional areas. After building an immensely convincing case about the pressing need for well-trained K-12 English language teachers in diverse, pluricultural English-medium contexts such as the USA, she uses an ethnographic approach to uncover the experiences of retraining, and the skills and talents this group brings to the ELT profession. Her account makes for fascinating reading, and will be welcomed not only by those working in the ELT field, but also by a wider general audience interested in entering this field.