What are adjustment layers in Photoshop, and how do they work?

Adjustment layers in Photoshop are non-destructive layers that allow you to apply adjustments to an image without permanently changing the original image. They can be used to make various adjustments such as brightness, contrast, color balance, and more. Adjustment layers work by applying changes only to the layer below them, preserving the original image data.

When you apply an adjustment layer, you can adjust the settings and make changes as needed, without affecting the underlying image. This provides flexibility and control in editing, as you can easily modify or delete adjustment layers to fine-tune the edits in your image.

Overall, adjustment layers are a powerful feature in Photoshop that help you enhance and manipulate images while maintaining the integrity of the original image.