Documentation for Adobe Photoshop Lightroom 3 Beta is live.
To use it, choose Help > Lightroom Help (F1) in Lightroom 3 Beta or go to Using Adobe Photoshop Lightroom 3 Beta.
Here are some of the Lightroom 3 Beta Help topics:
Keep in mind that just like the software, this documentation is prerelease. It may be incomplete or contain bugs. We hope to add commenting capabilities soon so you can provide feedback. Meanwhile, you can always share your thoughts at the Lightroom 3 Beta forum.