Virtual Library
E-Books
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OpenBookboon
1000+ free quality eBooks in business, engineering, sciences and IT.
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OpenIT eBooks
eBook library for Information Technologies with download notifications.
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OpenMicrosoft Press
Electronic books covering Microsoft technologies.
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OpenOpen Textbook Library
Openly licensed downloadable books for higher education.
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OpenZ-Library
Online project providing web access to public-domain and out-of-print books.