Forms are everywhere on the web - for registration and communicating, for commerce and government.  Good forms make for happier customers, better data, and reduced support costs. Bad forms fill your organization's databases with inaccuracies and duplicates and can cause loss of potential consumers. Designing good forms is trickier than people think.  Jarrett and Gaffney come to the rescue with Designing Forms that Work, clearly explaining exactly how to design great forms for the web.
Forms that Work: Designing Web Forms for Usability (Interactive Technologies)