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The Gerber/ Hart Library is a library for lesbian, gay, bisexual, and transgender resources; the special collections (open by appointment only) include a remarkable collection of pre-Stonewall periodicals and literature, periodicals and newsletters from around the world, and erotica. Their online catalog is not Internet accessible.
Materials on Jewish religion and culture, including a vast array of reference materials. The Asher Library's Special Collections include rare books dating from the 15th to the 20th centuries. Additionally, Special Collections holds the Muriel Yale Collection of Rare & Antique Maps of the Holy Land and the Ottoman Empire, which is one of the largest collections of maps of that region.