If reading our travel column leaves you desperate to get away, Alain de Botton’s new book explores why so many artists, writers and thinkers have found travel essential, and asks what we hope to find when we pack our bags, and how we can avoid being disappointed. Hamish Hamilton is offering readers five copies of The Art of Travel, at pound;14.99. Send a postcard with your name and address to Amelia King (address above) to arrive by June 21 or email friday@tes.co.uk*.