hi guys, wanting to find a good book on electrical controls circuits, repairing them and reading wiring diagrams effectively and efficiently, i have found a few books but was wondering if you guys have any recommendations,

does anyone have this book? any good?

http://www.amazon.co.uk/exec/obidos/...k-21/ref=nosim

i was also considering this one but this is book is more £, again has anyone got this book and what are your opinions on it?

http://www.amazon.co.uk/exec/obidos/...k-21/ref=nosim

if you have any other books you feel i may benefit from, that study in depth the subject above please recommend them to me, thanks guys