Basically, most parts about this book were completely and utterly normal, with the exception that Eisen used Mana-Crystal thread made of mana-crystals enchanted with Dragoon's special Appraisal ability. And well, he also had Caria try and wove in some parts of other thread, enchanted with Dragoon's Database ability, into the actual paper as she was making it, but in the end he could work on everything like it was just any normal book.
The part that would turn this item into one that was actually useable in the way that the young Changeling described it was a small lense that Eisen would place onto the front of the book. It would be constantly attached to the book via some string, both to make it easier to transfer the information onto the paper and also to make sure that the lense would be hard to lose. It was the center-piece for this item, after all.