Well, it depends what you want to do with linux. If you want to do more "technical" stuff like coding, barebones serves, or you really want to know the history or roots of Linux, go for the UNIX book.
But if you want to learn about desktop linux or just linux in general, try a linux book, but not for a specific distro.
Or online can be good.
My favorite websites that are packed with info to help people get started with linux:
- great info for beginners and many reviews and suggestions
- helpful stuff
- teaches you how to install ANYTHING in ubuntu
- for then linux newbie in all of us
- great, comprehensive, unofficial guide for ubuntu
- amazing. has a "distro page" for each of many hundreds of distros. On each page are the projects website, other helpful sites, short description, links to reviews, package lists, etc.... Also has many reviews and tons of distro news.
- great forum, categories for many distros, helpful, fast responses.
and just PM me if you need more websites.