Ema747
From the Sheffield website
'We recommend the GLEIM ATP (Airline Transport Pilot) test preparation book. The title is ATP; however, the book also contains ADX test questions since the ATP and ADX tests are virtually the same. Part of the Aircraft Dispatcher licensing requirements is to pass (> 70%) the Aircraft Dispatcher (ADX) Knowledge exam. A passed ATP exam is of no use to the individual applying for an Aircraft Dispatcher license.'
It does basically contain all the Q & A's available on-line at Sheffield, with a bit more to boot (Blank plogs and charts and stuff to work to)
It is the size of a UK phone book and about as much fun!
The American students on my course (all pilots of some description) advised me the American way is to learn the answers to the 1700+ possible ADX questions, this does (or in my case, did not fit) with the UK way of learning.
Gleims will give you a bit more (not a lot) background and info than downloading the Q & A's from Sheffield.
Good Luck to you, whatever you choose.
Bored