Every four years the Society of British Theatre Designers organises a major national exhibition of its members' work, along with members of the Association of Lighting Designers. This time round it's in the new (so new it's still being built) building at the Royal Welsh Collage of Music and Drama in Cardiff. I have a small display there about the process of making A Place at the Table, which I choose as it answered the exhibition's theme of 'transformation and revelation' and a specific request for contributors to share their processes.

The exhibition opens to the public today, Fri 18th March. As always, part of the exhibition will be selected to go to the Prague Quadrennial, the world's leading international theatre design exhibition. And for a second year running a smaller version of the exhibition will also be at the V&A Museum in London.