Children's author and illustrator Judith Kerr turns 90 today and to celebrate, we've taken a look at original artwork from some of her best-loved books.

With a natural eye for a child's imagination, Judith Kerr has long been a source of bedtime delight and escapism with beloved classics such as The Tiger Who Came To Tea and the Mog series, starring a forgetful - and at times, rather sad - cat.

Whether its a superior-looking tiger or a mournful tabby, her expressive sketches and wonderful storylines have captivated generations of children and nostalgic adults alike.

In celebration of her success, the V&A Museum of Childhood in east London held a retrospective of Judith's work a few years back.

This featured original artwork, notes and sketches from The Tiger Who Came To Tea - a book Judith originally wrote as a bedtime story for her own children that went onto sell over five million copies since its publication in 1968 - along with a selection of her early childhood drawings.

To remind yourself of the rich variety of characters brought to life in her books, take a look at some illustration from the exhibition, below:

Judith Kerr artwork