Book on Chess Tactics

In your opinion, what's the best book on chess tactics for intermediate players looking to improve?

Some books that I've found useful are Alexander Kotov's Chess Tactics, Max Euwe's Strategy and Tactics in Chess and David Lemoir's How to become a Deadly Chess Tactician.

well, there is also a website called, chesstempo.com. or if u have like an ipod or an iphone, u can download the app chessquest which really helps me out, it had like 1005 puzzle and only 2.99

Understanding Chess Tactics by Martin Weteschnik can be helpful. It is published by Quality Chess.

cagaiif, I can't find that chessquest on itunes. Is the name right or is it something different?

This one is aces man.

http://www.amazon.com/Sharpen-Your-Tactics-Anatoly-Lein/dp/1880673134/ref=sr_1_1?ie=UTF8&s=books&qid=1293611335&sr=8-1

and here a couple more books of interest

http://www.amazon.com/Art-Chess-Combination-Eugene-Znosko-Borovsky/dp/0486205835/ref=sr_1_1?s=books&ie=UTF8&qid=1293611459&sr=1-1

http://www.alibris.com/search/books/qwork/7244990/used/Winning%20Chess#search-anchor

Mikhail Tal's Winning Chess Combinations - Tal and Khenkin

One of my all time favourite books, only available in descriptive notation, I think.

I've read about 20 books on chess tactics. By far the best one I have ever read is "Predator at the Chessboard" by Ward Farnsworth (its a two part series). You can google his website, it has alot of great examples you can work through for free! He writes very wordy and detailed explanations of what you should be looking for in a position that will tip you off that a tactic is in the making. He self publishes the books (via Lulu.com) so you probably won't find them on Amazon. Most of the material in the books is on the website, but I liked it so much I went ahead and bought the books.

Ward Farnsworth's book is quite wordy and academic, but what do you expect from a guy named "Ward Farnsworth".  I did not find that book particularly helpful.

Instead i would refer any inquiries regarding chess books to this amazon list: http://www.amazon.com/Chess-Books-to-Actually-Read/lm/R2EBB9BKRK87P5

Best of luck.

 maybe u didn't get anything from it since you aren't an intermediate player(I assume the book is for int. since thats what the op asked about). 

I found forcing chess moves to be great.  The stock mates chapter is wonderful if you don't know all the standard mating patterns(some of which aren't quite so standard if you ask me).