[mrbill]

"UNIX in a Nutshell" and "Essential System Administration" helped kick-start my career back in '95-96, and I'll always be grateful for that.

I was in their "O'Reilly Irregulars" group a few years ago, where folks volunteered to go inventory/catalog the ORA books at their local favorite bookstore, in exchange for a free book or two a month. I also ran banner ads for ORA on a couple of my websites. Marsee and the rest of the crew there are wonderful people to deal with.

I go out of my way to buy ebook versions of their titles directly now even though I could pirate them easily for free.

[dredmorbius]

UNIX Power Tools as well.

One of the best 'Nix cookbooks ever written.