William Collins, Sons (often referred to as Collins) was a Scottish printing and publishing company founded by a Presbyterian schoolmaster, William Collins, in Glasgow in 1819, in partnership with Charles Chalmers, the younger brother of Thomas Chalmers, minister of Tron Church, Glasgow.
Collins merged with Harper & Row in 1990, forming a new publisher named HarperCollins.
Although the early emphasis of the company had been on religion and education, Collins also published more widely. In 1917, with Sir Godfrey Collins in charge, the firm started publishing fiction. Collins Crime Club (1930–94) published all but the first six of Agatha Christie's novels, starting in 1926, as well as the British editions of Rex Stout's Nero Wolfe books and many others from the Golden Age of Detective Fiction.