I found this laminate difficult to work with on book covers, especially used books and some lower quality YA books where there are publisher gloss coatings. It was impossible to get all the bubbles out even with a squeegee and on some types of book covers, the laminate would peel off the publisher's cover gloss coating when trying to reposition the laminate.
I love these covers for my library books. The center slit liner makes it easier to work with, and the matte finish looks great on the books once they are covered. Plus, being able to get a 600" roll is great for the budget. I highly recommend them!