Neil, each presentation book will have between 60 and 80 prints and it does have to be in some sort of bound form, as opposed to loose prints in a portfolio cover. I'm hoping that the books will be looked at frequently but even without fingerprints, I'm worried that there will be surface abrasion caused by rubbing against the prior page.
Thanks for the Andy Biggs link. I find it interesting that he does not use an inter-leaf in the book examples. He has focused on Moab products with Moab paper, which I have not used. I guess that any properly sized paper could be used with properly punched holes but the Moab paper is pre-scored to bend properly. Still, the look is clearly much nicer than mounting prints with corner hinges. I wonder if other manufacturers have similar products.