Dorothy Richmond is an experienced educator and author, renowned for her expertise in teaching Spanish as a second language. She has contributed to the field of language learning through her series of practice books, such as the "Practice Makes Perfect" series, which offers workbooks for learners at various levels to improve their Spanish grammar, vocabulary, and conversational skills. Richmond's books are widely used by students and teachers alike for their effectiveness in providing clear explanations, practical exercises, and a structured approach to mastering the Spanish language.