The "201 French Words and Phrases You Need to Know" set of flash cards by Theodore Kendris, published by Barrons Educational Series in 2019, is a valuable resource for foreign language study. This set of cards is designed to help learners expand their vocabulary and improve their language skills by providing essential French words and phrases in an easy-to-reference format. With a focus on practical use, these flash cards cover a variety of subjects within the French language, making them a useful study aid for individuals looking to enhance their language proficiency.