In his new book, Johnston wants us to consider improvisation not as a step towards something else but as an end in itself, and embarks on a journey through the whacky — but actually deeply serious — world of improvisation, in theatre, dance, music or any mix of these. He talks to forty or so key practitioners in the field - and passes on many of the techniques, tricks and, yes, games they use to try to stay permanently fresh.

Also see Chris Johnston's House of Games: Making Theatre from Everyday Life