CS4 is on the way! If you want to get a look at some of the many many new features, the guys over at Layers Magazine have put together some stunning videos covering the various applications. Stop by and learn!

Adobe Creative Suite 4 Learning Center | Layers Magazine: For Everything Adobe

One of Lightroom's great features is the ability to put images into collections. An image can appear in several collections so you can build groups of images that make sense to you. If you click on a collection name you can see and select all the images in that collection and create a web gallery or prints.

But what do you do if you have a large number of images and you need to find out which ones are not in a collection? Here is a step-by-step way to select all your non-collected images.

While in the Library module, open your Collections panel on the left.

Now click on the first collections in the list to highlight it.

While holding down the shift key click on the last collection in the list. You should now have all your collections selected and all the images in them appear in the grid.

To select all these images either press Control-A (Command-A on the Mac) or go up to the Edit menu and click Select All.

What's that you say? You're right! Now you have all your collected images selected. Here's how we get to our goal of select all images not in a collection.

Go to the Library panel and click on All Photographs.

Now the grid shows all your images with the collected ones selected. To finish off got to the edit menu and click Invert selection.

Viola! Now the grid shows a selection of all your images that are not in any collection!

Probably one of first and most well know principle of composition is the Rule of Thirds. It has been used by photographers since photography began and by the great artists for centuries before. So what is it?

Simply stated, the Rule of Thirds divides your image into three columns and three rows. Just like a tic-tac-toe grid.

Photoshop has many tools and techniques that allow you to work with color. In order to get the most out of these tools, however, it's important to understand how Photoshop deals with color.

The two color modes that most of us are familiar with are RGB and CMYK. While we can produce the same colors (for the most part) in both modes we need to understand that color are made in very different ways in these two models.