Nigel Molesworth, 'the gorila of 3B' and 'curse of st custard's' has, thankfully, not altered at all since he was first drawn by Ronald Searle who illustrated the school stories written by Geoffrey Willans in the 1950s. 'As any fule kno', as Molesworth would say, just one look at a cover in the series will elicit laughter and happy memories of childhood - or more recent - reading.