You can find your panels displayed down the right hand side of your screen. These panels contain adjustments and customizations for your tools. The default layout will look similar to the ones below.
Here you’ll find all your options to make adjustments for your tools such as, text size, layers, blending, and so on.
Most tools have a panel with adjustments and customizations, but they don’t all open up at the same time. You can open panels from the ‘window’ menu.
Panels that are currently open will have a tick next to the name in the ‘window’ menu.
Read page 34 of the textbook “Essential Photoshop Basics”.