This depends on the type of Leather. Typically most Leather Furniture is Protected Leather which is really easy to clean. To see which type of leather you have, make the surface wet, if the water sits on the surface and the leather doesn't change colour this is Protected Leather. If the water soaks in and the leather goes dark this is either Aniline or Nubuck Leather. Different types of Leather need different products.
You can find all products at: http://www.leathercareandrepair.co.uk
JC, January 2010