Buying books is probably my biggest vice when I travel. I bought a great one in America called An Incomplete Education, which covers everything from fashion to philosophy in quite a humorous way. It's a bluffer's guide, but pretty extensive. Because I never went to university, it's my attempt to bone up on subjects I don't know much about.

York Membery (2006-09-18). "Travelling Life - Katie Melua". The Telegraph.