Wikipedia
Cookstrips are recipes drawn as black and white graphics with short instructions. They were invented by Len Deighton while studying at the Royal College of Art in the 1950s. Deighton, who is a keen cook, originally drew the cookstrips as instructions to himself in order to keep his expensive cookbooks from becoming dirty in his kitchen. "I’m very messy, and didn’t want to take them into the kitchen. So I wrote out the recipes on paper, and it was easier for me to draw three eggs than write ‘three eggs’. So I drew three eggs, then put in an arrow. For me it was a natural way to work."
They were seen by fellow student Raymond Hawkey who suggested that with the addition of a grid to increase legibility they could be a regular newspaper feature. Although the cookstrips were originally planned for the Daily Express they found a more permanent home as a weekly feature in The Observer.
The first cookstrip, "Cooking Beef: Part 1", appeared in The Observer on March 18, 1962 eight months before the release of Deighton's debut novel, The IPCRESS File. The Action Cookbook which expanded these cookstrips into a full-length book was published March 1965, timed to coincide with the release of the film of The IPCRESS File which starred Michael Caine. Deighton chose the menu for the movie’s press lunch and everyone was presented with a copy of the book. In the movie Caine's character, Harry Palmer, is seen cracking eggs with one hand while behind him Deighton's cookstrips are pinned to the kitchen wall. (The hands cracking the eggs on film actually belonged to Deighton.) ‘Len’s a great cook, a smashing cook,’ said Caine. ‘I learned a lot about food from playing Harry Palmer.’
With the success of the Action Cookbook which became a "seminal sixties work", a second book Ou Est Le Garlic was published in October 1965. But by that time Deighton was becoming fully committed to his fiction writing and the last cookstrip appeared in The Observer on 7 August 1966.