Books2Africa is a UK-registered charity (1152599) founded in 2012 whose mission is to promote a culture of ‘readcycling’ and improve the quality of education in Africa, through the collection, processing, shipping and distribution of quality books, computers and educational materials that equip individuals, institutions, and communities to acquire knowledge and achieve their full potential in a globalised world.
They take all sorts of books for onward distribution to Africa - having sent over 3 million already, as well as computers and tech equipment. It costs £8 to send a box of up to 20 kg, for the courier fee.
If you are interested please see their website: