cPanel is no doubt to be well-known in the Linux hosting control panel. They have good online documentation, active communities especially in forum and also reliable on technical/sales support. But, we hardly find the documentation in PDF version which downloadable and can be print out as a book.
Here’s I share with you on the cPanel and WHM user manual. I found these some where in Internet but I cant remember which site I get it from (sorry for no credit back to the author). You can click following links to download:
cPanel_11_User_Manual – 402 KB – 189 pages
WHM_Administrator_Manual – 1.01 MB – 352 pages
Note: It is not as update as the latest version