Dean and Son was the first publisher to produce movable books on a large scale. Thomas Dean, who founded the firm sometime before 1800, was one of the first publishers to take full advantage of the new printing process, lithography, which was invented in Germany in 1798. His business was devoted exclusively to making and selling novelty books, or "toy" books, a term publishers began using in the early nineteenth century. His son George became a partner in 1847, and their toy books took over the market from the 1840s to the 1880s. 

Dean opened studios in London where teams of artists worked to design and craft all kinds of new and complex movables. Around 1856, Dean released a series of fairy tales and adventure stories under the title New Scenic Books. The scenes in the books were crafted in a "peep show" style. Each was illustrated on at least three cut-out sections. The sections were placed one behind another and attached by a ribbon running through them. This way, they could stay together and be folded flat as flaps, face down against a page. When a readers lifted a flap, a three-dimensional scene would actually pop-up!  A later, but good example of this technique is McLoughlin Brothers' The Lions' Den (ca. 1880), which is held together by a piece of board across the top instead a a ribbon.

The books in new scenic series are probably the first that today's readers would consider pop-up books, although the term "pop-up" was yet to be used to describe such books. "Movable" or "toy book" was usually the choice for description. In 1860, Dean actually claimed to be the "originator" of movable books.

During the 1860s, Dean can be credited with inventing another first: the use of a mechanism that moved or was animated by pulling a tab. Dean advertised the new mechanisms as "living pictures." The Royal Punch & Judy is one of these early publications with tabs, which are located on the bottom of each page. In it, Punch and Judy are animated in their miniature theatre and act out all the violence and abuse that a Victorian audience would have expected from the couple.   

Dean & Son's Moveable Book of the Royal Punch & Judy as Played before the Queen at Windsor Castle & the Crystal Palace. London: Dean & Son, [ca. 1861].

Another Dean series, Home Pantomime Toy Books, contains beautiful chromolithographs. The illustrated pages in these books are of different sizes; and, as the pages are turned, part of the visible scene changes, thereby changing the subject matter of the entire image. Beauty and the Beast, one of the books from this series, demonstrates this effect. 

Beauty and the Beast. Home Pantomime Toy Books. London: Dean & Son, [ca.1873].