30 days return. Buyer pays for return postage. If you use an eBay delivery label, it will be deducted from your refund amount.
Condition:
NewNew
Product Description : Written by the author of the bestselling HyperText amp HyperMedia this book is an excellent guide to the methods of usability engineering It emphasizes cost effective methods that will help developers improve user interfaces immediately Stepbystep information on which methods to use at various stages during the development life cycle are included along with how to run a usability test