The world's largest electronic sefarim library Otzar HaHochma is a virtual library of tremendous proportions that has revolutionized digital libraries, forever transforming the process of book collecting and access to them. This computer hard drive contains nearly 19,400 Torah books, scanned page after page in their original format. Otzar HaHochma contains all of the essential sefarim and most other useful sefarim as well as ancient and rare books, original manuscripts, periodicals, Torah collections, thousands of contemporary books and more. Cleverly designed and user-friendly, the Otzat HaHochma program allows users to reach their book destination in just seconds. All of the books, alongside which appears their bibliography, are catalogued according to topics and sub-topics.  Users can look through, search and print from the entire library. The program has already been dubbed “The greatest revolution since the printing press.” Windows XP compatible hard drive