Chess Puzzle Book (the best)

Which Chess Puzzle Book would you think is the best (for relatively advanced players)?  I think the "The Ultimate Chess Puzzle Book", by John Emms is great, what do you think?  Here's a fun, intermediate puzzle you can also do:

SOMETHING WAS WRONG WITH THE PUZZLE CREATOR, SO PLEASE JUST COMMENT YOUR MOVE

SORRY, IT'S BLACK TO MOVE!!!!!!!!!!!!!!

CORRECT!!!

the best chess puzzle book ever has to be:

PERFECT YOUR CHESS - by Volokitin and Grabinsky

in 2nd place - Nunn's chess puzzles

3rd - Chess school 3

These are all very very hard... for fighters!

is that move sequence for checkmate or just to try to capture queen?

dumb question, all it does is capture queen,i was looking for a checkmate,but being up a queen does not ensure  a black win

make me confuse at first.. but here is balck to move..

first thought was to sacrifice bishop but the puzzle didnt work..

at last i see the comment.. everything is ok now..