Dorling Kindersley are producers of Eyewitness Travel, one of the world’s leading travel guide series. DK sought a new interactive outlet for their city guides on the iPad, a device that serves as a remarkable showcase for the guide’s visual appeal.

User testing sessions mark the first point of contact that our software and designs have with the people who will ultimately be using them. Showing the product to fresh pairs or eyes invariably exposes issues that were invisible to the people working on it, allowing them to be identified and fixed before the final build.

The Apple App Store currently holds hundreds of thousands of different apps for every category you can think of. With so many apps available it can be pretty hard to decide which ones are worth downloading and often apps can be somewhat disappointing- so without further ado, Cogapp have given a roundup of some of our favourite apps of the moment: