Any chance you could elaborate on the reason behind the obviously different coloured books ?
I've been to many a raffle where they were selling from more than one book of tickets that had very similar colours. You get some very disappointed people when they think they've won because their number came up, only to find that their 'buff 85' ticket is actually 'peach 85', or 'cream 85' etc.
If you're only using one book then it won't matter, but sometimes useful to have more than one person selling tickets so you're not inundated.