Will "Pro CSS and HTML Design Patterns" improve my sense of design? Pro CSS and HTML Design Patterns focuses on the technical patterns you need to use to code a design.
Thus, if you code web pages, this book is a must read. It is one of the few books on CSS written for the programmer rather than the designer. This book helps you translate a design into code that will reliably and accurately recreate the design.
My book doesn't teach how to design the look-and-feel of a web page. But, it will give you ideas on web-page layout, such as fluid layout, bread crumbs, tabs, rollups, popups, menus, etc.