Hunter
BELIEVE
What does it actually tell you? I can't imagine it being a huge help - unlike, say, one for a game based on a linear plot or something, with hidden items, ways to beat bosses, etc. All I can imagine it doing is telling you best formations for teams, and maybe clever ways of thing like heading better (using R2 for example).
Since it's an official Konami guide, it can't have classic players real names, or Spanish/English club names/kits, so I just can't see it justifying itself.
The last PES guide I owned was PES6 and it was indeed very helpful.
Obviously it tells you formations that will help, but also what formations have an impact against other certain formations. Intricate tactics, how to utilise them and which types of players are best allocated with these tactics in terms of their stats etc.
Tips on how to succeed and get the most out of the original Master League team, and potential signings to look out for among plenty of other information.
There's a ton of information in the guides, some tips are obvious and you would know anyway but a lot of the stuff I read in the PES6 guide was very helpful and I honestly didn't realise had an impact on the game.
Plus it will probably last you a few years since the game doesn't change that dramatically.