I also think you get the main tactical education by doing puzzles. Lot of easy puzzles.
Despite that, I recommend "Understanding Chess Tactics" by Martin Weteschnik, which is the best book so far I have read about tactics. It explains in a very good way how to see and create tactics.
If you've got access to that book, Woodie, read it.
I think it gets all the rave reviews because the text portion is actually readable. It doesn't just give you a bunch of tactical puzzles; it categories tactics into things to look for. It's better than tactics trainer, and there's actually some humor in it.
It's the only chess book I've ever made it to the end of.