The Barton's Mastering Hebrew Book & 12 Cassettes Set by Foreign Service Institute is a comprehensive language course designed for those looking to learn Hebrew. The set includes a book titled "Mastering Hebrew" and 12 cassettes, providing a thorough approach to mastering the language. Published by Kaplan Publishing in the 1980s, this course is part of the Mastering Series/Level 1 Ser. and is authored by the Foreign Service Language Institute Staff. With a focus on the Hebrew language and structured lessons, this set is perfect for individuals looking to improve their skills in Hebrew through a combination of book and tape format.