Compiled by Michael Hipp  from contributions as noted below.

If there's a book that just has to be added to the list, let us know.

All of the O'Reilly books, especially:
"Running Linux", Welsh, Dalheimer, and Kaufman, ISBN: 156592469X
"Linux in a Nutshell", Siever, ISBN: 1565925858

"Using Caldera Open Linux", Smart, et al, QUE Pub., ISBN: 0789720582
"Practical KDE", Powell, QUE Pub, ISBN: 078972216X

The linux documentation project: http://www.linuxdocs.org

Step By Step Site at http://linux-sxs.org   "Don't Do Linux Without It"

"OpenLinux User's Guide" - Caldera Systems

"The Cathedral and the Bazaar"  - Eric S. Raymond

"Linux Unleashed" - Bill Ball, Sams, ISBN: 0672316889
      Seems pretty comprehensive.

"A Practical Guide to Linux" by Mark G.Sobell, Addison-Wesley Pub Co, ISBN: 0201895498

"Caldera Unleashed" - David Skoll, Sams; ISBN: 0672317613.
It's a great book.  Granted, it's partial to COL 2.3, but only a few things changed from COL 2.3 to eD 2.4.  The bulk of the stuff stayed the same.
 

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