The timely opening of Tell Me a Picture, at the O3 Gallery, Oxford Castle, adds an extra attraction to the Oxford Literary Festival. Although not on the official programme, it certainly complements all that's going on at Christ Church this week.

This exhibition celebrates the crossing of boundaries between art and literature, by displaying work of emerging Oxfordshire children's book illustrators alongside more established figures. The show also features a selection of works by local artists such as Ros Rixon, who fills hand-blown recycled lead crystal spheres with hand-cut text from vintage books. Ros admits loving the feel and smell of books, particularly vintage books which she finds particularly tactile.

The very imaginative and talented Sue Mynall, who illustrated A Crazy Day at the Zoo, has several works on show, including Blackberrying, a delightful composition which says everything. No words are needed to share the delight of the young children, their grannies, the cows and the dog who are all enjoying this popular country pursuit.

Naturally, there are many works by Korky Paul on show. No collection of Oxford book illustrators' work would be complete without his Fish That Could Wish, The Dog that Would Dig, Professor Puffendorf or Winnie the Witch. The more you gaze at his colourful works the more you see. They are superb.

Joanna Walsh mixes printmaking with hand drawing and collage techniques to create pictures which are then scanned into Photoshop and reworked. She contributes some very colourful images too. Mario Coelho's The Queen With Her Head in the Clouds also makes a great contribution to this exhibition, which continues until Wednesday, April 23.