Curtis served his apprenticeship to Thomas Matthews from 1659 to 1666. Less than a month after completing his apprenticeship, he married Jane Evans and together they set up as booksellers on Ludgate Hill near Fleet Bridge. Curtis first registered a copy with the Company Register on 16 February 1669, entitled The Quakers Spirituall Cort Proclaymed. He and his wife Jane were responsible for numerous scandalous and seditious works and consequently in near constant trouble with the authorities. The Curtis’ most incendiary works were carefully timed political commentaries, such as A Pacquet of Advice from Rome, a weekly sheet first released in 1678, coinciding with the frenzy of the Popish Plot; Scroggs upon Scroggs (1681) satirising Lord Chief Justice William Scroggs; and Lord Russell’s Ghost (1683) on the Whig martyr Lord William Russelll. It was publications like these, which has seen Curtis labelled a Whig publisher, further consolidated by his newspaper the True Protestant Mercury. Langley Curtis’s final imprint is dated 1690. He appears to have died in 1693 in Ireland.

After the death of her husband, printer David Mallet, in 1683, Elizabeth became the operator of their two printing presses in Black Horse Alley, near Fleet Bridge. She specialised in lurid and sensational tracts, registering a great number of such works with the Stationers’ Company. Mallet also produced serial publications, such as The New State of Europe, and, most famously, the first ten issues of the Daily Courant, the first daily newspaper in Britain.

From 1730, Newbery was working as a journeyman for the printer William Carnan in Reading. Upon Carnan’s death, Newbery took over the running of the Reading Mercury and married Carnan’s widow, Mary. The family moved to London in 1744. Newbery became an important early publisher of works for children. He was an innovative and intelligent businessman, issuing the first children’s periodical and the first children’s encyclopaedia, advertising widely, offering discounts to teachers buying in bulk, and publishing other bestsellers, from the annual Ladies Complete Pocket-Book to works by Samuel Richardson and Oliver Goldsmith. From 1751, Newbery also published the works of poet Christopher Smart, a bond strengthened when his stepdaughter Anna Maria Carnan married Smart in 1752. He died a wealthy man in 1767 and was succeeded in business by his son, Francis Newbery. In recognition of Newbery’s contribution to children’s literature, the Newbery medal, introduced in 1922 in the United States, is awarded every year to an outstanding book for children.