Calibre is about the best thing since sliced bread. It is able to convert basically any type of Ebook format into EPUB, which is what my Nook reads natively. It seamlessly syncs with the Nook as well, which is a huge plus, and all of this happens in Linux. I highly recommend this software. Just [...]

I converted an ebook from TXT to EPUB today using Calibre, and found that the italics (which in the TXT file are annotated /like this/) are not converted into the HTML equivalent.  I did the following to fix this: unzip ebook.epub -d tmpbook cd tmpbook perl -i.bak -pe ‘s/([\s-,.;\'?:]+)\/(.+?)\/([\s-,.;\'?:]+)/$1<i>$2<\/i>$3/sg;’ *html That will create.bak files just [...]