Mobile usability

"How do we design the best websites and apps for today's smart phone and tablet users ? Best-selling author Jakob Nielsen and coauthor Raluca Budiu offer their key insights into developing a mobile strategy for your client or business and designing and writing for small screens. Their user-data based approach will help designers, software developers, writers, editors, product managers, and advertisers understand how to create mobile websites and apps for their customers and improve user experience with an eye toward the future of mobile use." -- From publisher description.