In 1863, Altemus was awarded a patent for a particular type of binding for photographic albums.
These albums were huge sellers for Altemus and were the mainstay of their publishing business until the mid-1880s.
Starting in 1889, books were published with the Henry Altemus imprint.
[1] More than 95% of all the published works of Henry Altemus were in series form.
[3] Altemus' most popular series included the Young People's Library, Wee Books for Wee Folks, and their numerous juvenile series books.