re: Poker & Harrington on holdem: vol. 1 stragetic play
The HOH tournament series is no doubt the most read NLHE Tournament books of all time.
I would also agree that they are "MUST" reads for anyone getting started in NLHE MTT play (& for others who just haven't read a book yet).
I'd suggest trying to pick it up from your local library. If they don't carry it they might get it for you via an inter-library book loan.
(yes I've read it... probably 4 or 5x... both Vol1 & 2.. and yah.. don't bother with Vol.3, I didn't think it was worth going thru to be honest (< but did so twice anyways, lol)).
Another book you might want to check out is Phil Gordon's Little GreenBook (again though, try to get it from a library).