The 39 Melochos: An Elucidation of the 39 Melochos from Concept to Practical Application (4 Volume Set);

39 Melochos set is a thorough and comprehensive guide to the 39 Melachos of Shabbos.
All-encompassing and easy-to-use, it explores every aspect of the 39 categories of labor forbidden on Shabbos, with practical applications for each. With hundreds of illustrations, a comprehensive index, and over 10,000 Hebrew notes, this monumental work belongs in every Jewish home.