What is penguin 60s?

Penguin 60s are a series of short books published by Penguin Books. They were first introduced in 1995 to celebrate Penguin's 60th anniversary and were priced at 60 pence each. The books cover a wide range of topics including fiction, non-fiction, poetry, essays, and more. They are all very short, with most of them being around 60 pages long, and are designed to be read in one sitting. Some of the most popular titles in the series include "The Art of War" by Sun Tzu, "The Communist Manifesto" by Karl Marx and Friedrich Engels, "The Strange Case of Dr. Jekyll and Mr. Hyde" by Robert Louis Stevenson, and "The Yellow Wallpaper" by Charlotte Perkins Gilman. Many of these books are still in print today and remain popular with readers who are interested in exploring new topics or catching up on classic literature.