I got the Beginner's Guide to DarkBASIC Game Programming way back in the day when I first started. Still use it as a reference if I need to touch up on something.
Here is the Info:
Beginner's Guide to DarkBASIC Game Programming
By Jonathan S. Harbour with Joshua R. Smith.
ISBN: 1-59200-009-6
It is true that TDK's tutorials are a really good learning source, at the same time though, I would also suggest the book for its completeness (it covers every command, some better than others though).
Great Quote:
"Time...LINE??? Time isn't made out of lines...it is made out of circles. That is why clocks are round!" -Caboose