Adobe Illustrator Layers
If you are new to layers totally, Adobe Illustrator Layers are very interesting. If you have worked in Photoshop with Photoshop layers then Illustrator Layers are a totally different thing. Not totally different, but different.
The more you work with Adobe Illustrator, the more complex you projects will be. You will have text, images, logos, backgrounds, groups of objects and finding them the next day or six months from now can be hard to do.
When working with Illustrator Layers, you can name parts of your project so that you can remember what is where. This is important because it makes it easy to edit when you open the file the next day. You may just be working on a project just for today, but after four hours of work, you want to remember what is where. Adobe Illustrator Layers make this possible and layers make your work much easier.
When you figure out and work with Adobe Illustrator Layers, if you have one part of your image in front of another part of your image, then you might decide that you want that part of the image behind where it was before. With layers, you can simply drag that part of the image in front or behind. And if you change your mind, you can move it again.
If this is the first time you have worked with layers, then you need to try it to appreciate it. Once you get in control of layers, you will love them.
For people that have used Photoshop layers there is one big difference. Adobe Illustrator Layers has what they call sub layers. This is a very different thing for Photoshop users. Layers with in layers. The big thing is that Illustrator creates sub layers automatically. You have no clue that they are being added or created.