When I first wrote to Ronald Searle with the idea of an exhibition focusing on his reportage work, he was polite but sceptical, pointing out the difficulty of locating artwork that had been scattered across continents. The idea for a show at the Cartoon Museum, where I have been on the board of trustees for some years, fell into abeyance until the approach of his 90th birthday; this time we proposed a more general exhibition and I was delighted when he responded positivel