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Design

What's the difference between layers and sublayers?

In adobe illustrator, I can't figure out the difference is between layers and sublayers. Is it purely organizational or what does it mean/do?

Layers and sublayers function the same way to help organize content and make it easier to select, hide, lock, and change it's appearance. The difference is that a layer is required and it organizes the content within the overall document, while sublayers are optional and organize content within a specific layer (it's parent layer). Sublayers are not necessary for simple documents and layers, but are very helpful when you have a large or complex document.

1 Answer

.... You'd use a sub-layer if you were using a Clipping Mask (cmd+7). Unlike Photoshop where each layer can have a mask applied directly, Illustrator needs a separate layer above to mask-out and hide areas of the underlying layer.

@jennetted said it all pretty concisely — mainly for organisation!