I work in a library, and some books are delivered this way. Like, they appear to have been produced originally as paperback and "converted" to hardbound. I don't know the process, but I think such binding is referred to as turtle binding also, I think the company that does it is called "bound-to-stay-bound."

Blogger Brad Isaac posts a tutorial on how to bind a paperback version of an e-book at home with some glue and card stock. This process involves just a few basic steps, no sewing, or doing mini How to Repair a Paperback Book. Do you have a trade paperback that has fallen on hard times? If you've got loose or torn pages, a detached cover, broken binding, or dirty smudges all over your book, don't fret. It's fairly simple to Instant price calculator available, compare your options and get a free quote, competitive pricing and quality materials available, Introductions Peter D. Verheyen, Head of Preservation and Conservation Began with circulating collections repair while work-study student at Johns Hopkins. Followed by binding and rare book conservation training and career. Marianne Hanley, Assistant Conservator Manages circulating collections rehousing and Limp Bindings: The Ageless Book Books in this case show a style, rather than an era. Limp structures, books without stiff covers, have been around since the beginning of the codex (2nd century AD). This structure can still be seen in our modern paperback books, although they look, and act, nothing like these earlier examples. Though books are sold as hardcover or paperback, the actual binding of the pages is important to durability. Most paperbacks and some hard cover books have a "perfect binding". The pages are aligned or cut together and glued. A strong and flexible layer, which may or may not be the glue itself, holds the book together. Bookbinding University is in full swing! If you missed the last lesson on "How to Make a Text Block," you'd better study up because today we're moving on to