John Lennon had a mistress for a couple of years, long after he had left his first wife and when he was with Yoko Ono. Her name was May Pang and she was initially hired as their personal assistant but became Lennon's girlfriend between 1973 and 1975. She took lots of photos during that time, and kept them stashed away in a shoebox in her closet.

Now she's put them together into a book for the world to see; Instamatic Karma

It's not the first time she's written a book about Lennon. Back in 1983 she published Loving John, because she was tired of being "airbrushed out of the Lennon history".