I wouldnt get too hung up on getting books etc for the aptitude tests
alrite i have done some flying befor i went down but i didnt need it.
previous flyin can put u at a dissadvantage on some tests and an advantage on othere so it all works out nicely
so when you go chill take a deep breath and be yourself the only preperation i did was
some practice aptitude tests online that were way harder than jerez's look here for some
http://www.shl.com/SHL/en-int/Products/TestTrials.htm they are free ia also tried pilapt-prep.co.uk sadly to say the biggest waste of 25quid in my opinion sorry to anyone who swears buy it
2FoxtrotExho
PS - Is anyone starting on the may 22nd course??