Tactics books worth investing in ...

These are some of my favourite chess tactics books ...

Practical Chess Lessons: 600 Lessons from Tactics to Strategy - Ray Cheng
http://www.amazon.co.uk/Practical-Chess-Exercises-Lessons-Strategy/dp/1587368013/ref=cm_cr-mr-title (reviewed on Amazon)

Sharpen Your Tactics - Arkhangelsky & Lein
http://www.amazon.co.uk/Sharpen-Your-Tactics-Anatoly-Lein/dp/1880673134/ref=cm_cr-mr-title (reviewed on Amazon)

Find the Checkmate - Gary Lane
http://www.amazon.co.uk/Find-Checkmate-Batsford-Chess-Book/dp/0713488611/ref=sr_1_1?ie=UTF8&s=books&qid=1227616840&sr=8-1 (reviewed on Amazon)

Definitely OK for chess amateurs like me!