I disagree, PDFs provide a consistent, as intended layout from the author/publisher/editor. EPUBs are great for novels and text-heavy literature, but they're aw

I disagree, PDFs provide a consistent, as intended layout from the author/publisher/editor. EPUBs are great for novels and text-heavy literature, but they're awful for anything that has pictures, code snippets, etc. I usually prefer to buy O'Reilly books in PDF format because they're extremely well formatted and designed - just as if you're reading a physical book. In addition, typography and style are poorly adapted in EPUB format whereas with PDF - it can be read instantly on any device, any where and usually without installing a reader or fonts. There is so much inconsistency between Windows/Linux and Mac, iPhone, Android when reading an EPUB book. EPUB = Great for text only literature. PDF = Great for pretty much everything else.