[stinos]

Not a book, but an ASCII table comes in handy ever so often

[52-6F-62]

Yup. I work in a pretty pared down cubicle space and prefer not to leave my books at work— one of those dorks with a wall of them in my apartment.

But I do have an Ascii table and a DEC/HEX/OCT/BIN chart so that I can just glance up if I'm not feeling particularly quick.

[MrMid]

And regex cheatsheet.

[ams6110]

man ascii

or in some systems, the command 'ascii'