Here is presenting some of the most interesting slideshows on User Experience.

Beginner:

What is User Experience

An introduction to the factors that affect and define user experience. A basic overview for beginners.

Design for User Experience

Tips and guidelines to follow while designing for good user experience along with screenshots as examples.

10 Most Common Misconceptions About User Experience Design

Common myths about user experience are disclosed and discussed here.

Designing Experience F08

Introduces the basic principles of user experience with suggestions for designing good online and offline experiences.

User Interface Design

via Netbramha , a design studio based out of Bangalore.