As though the 700 events in its printed programme weren't enough, the Book Festival has added another dozen entries to its programme - published exclusively online.  New highlights include Life of Pi author Yann Martel, and a new talk on John Scott Haldane, the Scots scientist born in 1860 a stone's throw from the Book Festival site on Charlotte Square.

You can find a complete list of the new events on the Book Festival's website.  Bookings are being taken through all the normal channels - for details, see our earlier Ticket Alert.