If your book isn’t in a supported format, you can use a third-party tool like Calibre to convert the file to ePub. The PDF support on Nook readers is limited. There’s no option to rotate pages ...

One of my favorite e-reading devices, except for suboptimal library book support ... With the Nook GlowLight 4 (and any other Nook I've used over the years), you have to download the ePub from ...