Iain Macmillan
Iain Stewart Macmillan (20 October 1938 – 8 May 2006) was the Scottish photographer famous for taking the cover photograph for the Beatles' album Abbey Road in 1969. He grew up in Scotland, then moved to London to become a professional photographer. He used a photo of Yoko Ono in a book that he published in 1966, and Ono invited him to photograph her exhibit at Indica Gallery. She introduced him to John Lennon, and Lennon invited him to photograph the cover for Abbey Road. He worked with Lennon and Ono for several years, even staying for a while at their home in New York.
Source: Wikipedia