I recently purchased a couple of the portfolio boxes Andy shows in his video, for loose prints to present a portfolio, or if you are selling a high end group of prints as he does, they are fantastic.
As far as book options, I recently assembled a portfolio using
Pina Zangaro's Vista Mist cover. I printed the pages on 13x19 Epson Exhibition Fiber, and used these
clear strip hinges on each page. I attached the hinge to the back of the page so as you view each picture the page is clean. the small clear attachment on the back of the previous page isn't objectionable. I have about 40 images in 1 book (I had to buy the extender post set), and I arranged them so all the verticals were at the beginning followed by the landscape oriented images, so you only had to turn the book once. The page that is being viewed is actually decently flat. I have used this to present my work several times and the response has been very good.
Unfortunately I believe they are going to be discontinued, I bought a few for future use.