In the 1960s, when the original Batman series was broadcast in the US, ABC received tens of thousands of letters addressed to the Caped Crusader – most, but not all, written by kids.
At this year's Letters Live show at Wilderness Festival, Oxfordshire, UK, Claire Foy, Louise Brealey, Emma Corrin, and Noma Dumezweni joined us to read just a few of these brilliant letters.
© Bill Adler, from 'Fan Mail 66'