In my opinion, Generations and the original Cybertronian guides are the best. I haven't read the Mark Bellomo guide but it looks okay too. A link to many of them can be found here: http://tfwiki.net/wiki/Category:Reference_texts
Cheers Sky Shadow for the link, I remember the topic coming up before but trying to find it...
Originally Posted by 5FDP
When you say 'character models', are you referring to the cartoon? If so, 'The Ark' (bottom left) is the book you want.
Bingo!, that's the one I meant cheers 5FDP, there were 2 weren't there?, the first following US/UK G1 and the second focusing on Japanese G1 yeah?