iBooks is an excellent app that enables you to buy ebooks in the iTunes store and then read them on your iPhone, iPad or iPod Touch. You can carry a whole library of books in your pocket, read them on the bus, train or plane, take them on holiday and so on. But how do you delete a book?

You may not have realised it, but your iPhone is probably automatically backing everything up online using iCloud. Apple provides 5GB for free, but how much are you using? Are you near your limit? How can you reduce your usage? Let’s take a look.