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        BookScans is a free online reference site listing tens of thousands of .jpg images, arranged numerically, by publisher, displaying how cover images and graphics changed during the early years of paperbacks.
      
     
      
    
        At Comic Book Plus, you can read and download Golden Age comic books. We also hold a large and growing selection of Silver Age comic books, Comic Strips, Pulp Fiction, Old Time Radio (OTR), Fanzines, a lively and active Forum plus lots more.
      
     
      
    
        DOAB is a community-driven discovery service that indexes and provides access to scholarly, peer-reviewed open access books and helps users to find trusted open access book publishers. All DOAB services are free of charge and all data is freely available.
      
     
      
    
        Search, save and share art, books, films and music from thousands of cultural institutions
      
     
      
    
        FigCat is an independent website maintained as a hobby project by one very obsessive person – me, wargaluk. I originally compiled most of these lists in my spare time for personal reference, simply because I was interested in the topics they cover; only after I had accumulated a lot of them over the years did it occur to me to update them and make them public. I hope some of them will be relevant to your own interests.
      
     
      
    
        Free public domain audiobooks, narrated by real people.
      
     
      
    
        Open Library is an open, editable library catalog, building towards a web page for every book ever published. Read, borrow, and discover more than 3M books for free.
      
     
      
    
        A library of textbooks that are considered open because they are free to use and distribute, and are licensed to be freely adapted or changed with proper attribution.
      
     
      
    
        Project Gutenberg was the first provider of free eBooks. Michael Hart, founder of Project Gutenberg, invented eBooks in 1971 and his memory continues to inspire the creation of eBooks and related content today.
      
     
      
    
        Free and liberated ebooks, carefully produced for the true book lover