Free PDFBooksWorld Alternatives
PDFBooksWorld is described as 'Free pdf books on fiction, non-fiction, academic, textbooks and children's books available for download in high quality PDF format'. There are three alternatives to PDFBooksWorld for various platforms. The best alternative is Project Gutenberg, which is free. Other great sites and apps similar to PDFBooksWorld are College Student Textbooks (Freemium) and Centless Books (Free).