Beatrix Potter (1866-1943) is one of the world's best-loved children's authors and illustrators. She wrote the majority of the twenty-three Original Peter Rabbit Books between 1901 and 1913. The Tale of Peter Rabbit (Frederick Warne, 1902) is her most famous and best-loved tale.

From early childhood Beatrix Potter spent time drawing the many pets that she kept in her schoolroom: over the years, her pets included lizards, snails, bats, mice, rabbits and many other animals. During the family’s long summer holidays to rural areas she also took the opportunity to draw the plants and animals she saw in the countryside. Even her earliest childhood drawings show a serious interest in natural history, her sketches annotated with information about the species concerned.

As a young woman Beatrix Potter studied natural history with some seriousness, exploring the collections of the Natural History Museum, including the insect cases and fungi specimens. She had a collector’s cabinet full of specimens, from shells to dead butterflies and moths, and used a magnifying glass and a microscope to examine them more closely.

Potter often made sketches of her pets and other animals she came across. The quick studies of a squirrel seen on both sides of this sheet demonstrate the ways she attempted to capture various animals from many different angles. They may have been made as part of her preparations for her 1903 book, The Tale of Squirrel Nutkin.