Robin Wilson is Head of the Pure Mathematics Department at the Open University and, in London, Gresham Professor of Geometry, the oldest mathematics Chair in England. He is also a Fellow in Mathematics at Keble College, Oxford. The author and editor of thirty books, including the critically acclaimed Four Colours Suffice, he is well known internationally for his expository skills and has won a number of prestigious awards for his writings.

'A fascinating story ... Wilson could not be better qualified to write a book on [Carroll's] career in numbers' - Jonathan Bate, Sunday Telegraph 'First-rate ... Wilson conjures the spirit of a man who delighted in paradox' Nature 'A loving mathematician's biography ! revel in the unravelling of an intricate and exquisite mind' Independent 'A delightful blend of whimsy, satire, endlessly ingenious puns, brain-teasers and unexpected (but very accessible) mathematical insights' - Matthew Reisz, The Times Higher Education Supplement