What is science fiction, asks Bo Fowler
Michael Levey speaks in support of reason
George Melly salutes 100 years of blasphemy
The Glorious Revolution was neither, says Michael Binyon
Counting, categorising, complexity. Michael Frayn offers Laurie Taylor his version of the human condition
Imogen Edwards-Jones plots a new career path
Newly discovered letters shed light on the inner life of Orwell's wife, writes Jenny Joseph
Ebenezer Obadare on the latest novel from Africa's greatest living author
Toby Saul on how the paintings of Diego Velazquez changed our way of seeing
Nina Power deconstructs a contemporary parable