Cheshire...pilots are by nature thick ******s and like nice big coloured pictures....if they did ATPL books that you could colour in, I'd get em!
SuperTed....both the Bristol CD and the Oxford diagrams are good.
To be honest, if you're doing resident study then it won't matter cos you'll be getting all your info from the instructor AND drawing your own diagrams....wooohoo (:
If you're doing distance learning then there's not much in it....as long as they're sharp and clear.....Ham is quite right...some of the efforts that some of the schools used to shove your way were a joke...we've still got a long way to go before we get to the Jepp American standard of books