GETTING STARTED
Speaking of starting, in this section, we will be discussing how to get started with Adobe Photoshop. It is always better to know where everything is so that it will be much easier to navigate the software interface.
THE INTERFACE
Of course, the interface is the first place you see once you open the software program. We will be discussing those features that are easily found on the interface.
THE MENU
This is where we have the menu bar. The menus are File, Edit, Image, Layer, Type, Select, Filter, View, Window, Help.
THE OPTIONS BAR
The Options bar is frequently used when a tool is selected. It lets you adjust the settings specific to an active tool. Here, the text tool was selected:
THE TOOLBOX
By default, you can find the Toolbox on the left side of the screen, and it houses all the available tools for PhotoShop.
When you are about to select a tool and notice a small black arrow at the bottom right corner of such a tool, there are other tools related to the one you are about to choose. To display those other tools, simply click and hold the mouse on the tool, and the other tool(s) will be displayed.
THE PANELS
Panels in PhotoShop give you more control of the document you are working on. Examples of panels are the Layers panel, which helps you create and manage additional layers, and the Color panel, which gives you a wide range of color effects. The Toolbox is also referred to as the Tools panel, and it opens along with the current Photoshop document.
However, you can rearrange these panels to suit your taste, and you can place and dock panels together in a bid to consolidate your Photoshop workspace. This is a useful strategy for you if you would be working with a smaller screen. You can achieve that by clicking and dragging the title tab of one of the panels over another. When you are about to drag one panel on another, the panel outline turns blue; this shows you that it is possible to dock the panel on another. Once your mouse is released, you now have more panels in one window. One good rule would be to dock similar items together.
THE DOCUMENT WINDOW
Some call it the Artboard; this is the page you work on your actual file or image in the software. You can have more than one image opened at once in Photoshop.
Below are the basic things you should when you open new documents:
To Open New Documents
To open a new document, go to File > New for an empty document or use the shortcut CTRL + N (Windows) or Command + N (macOS). A new window would be displayed with several options. Here, you choose your file size, color mode, and resolution.
As a beginner, you need to understand the following:
ADDING TEXT
Text of different styles, colors, and effects can be added to an image using the Horizontal Type and Vertical Type tools to edit or create text. You can even create a paragraph or single-line text. The new text you type is automatically entered into another layer. Each line of the single-line text is independent, and the length of each line grows or shrinks as you add or delete text, but it does not go over to the next line. After typing, press Enter to create. Paragraph text wraps within any boundary you specify. So, to add text, do the following:
ADDING SHAPES
In the Tools panel, simply click and hold the Rectangle tool (or any shape tool showing in the Tools panel at the time) to get a view of all the shape tools.
Select the tool for the shape you would like to draw. In the Options bar, choose a Fill color and other available options for your shape.
Press and hold the Shift key on your keyboard to prevent distorting the shape while you drag. This will automatically create a new shape layer in the Layers panel just as we have a new text layer when you type.
To Move Your Shape
Then, the Move tool can be used to move the shape into position in your image.
You can scale, rotate, or transform the shape without affecting its quality by selecting Edit > Free Transform or by simply pressing CTRL + T (Windows) or Command + T (macOS).
To Change Your Shape's Color
To change your shape's color, go to the Layers panel and find the shape layer you would like to change. Double-click the thumbnail on that layer, and then the Color Picker will open. Click on any color in the Color Picker to see a live preview of the shape's selected color. Accept by clicking OK when you have found the color you would like to use.
To Add Text To Shapes
To add text to shapes, do these:
ADDING IMAGES
There are many ways to insert images in Photoshop or transfer them from an image database. These images will be imported in the best possible quality, but this is not a guarantee because there are ways to check the import's image data.
USING THE FREE TRANSFORM TOOL
This tool lets you apply transformations like perspective, distort, skew, scale, and rotate in one operation. You can even use a warp transformation. So, to transform an object, do these:
COMMON SHORTCUT KEYS
There are many shortcut keys in Photoshop, but you do not need to memorize all of them. We will be discussing some of them shortly.
There are many other shortcut keys, but mastering some of these shortcuts listed above will go a long way in helping you on your journey.
HOW TO DO MULTIPLE UNDOS
Maybe you changed your mind, or due to a mistake, you might want to recreate something. By default, PhotoShop will allow you to use the common undo shortcut (Ctrl or Command + Z) once. But most of the time, you might need to step back still more than once. 
To do this in PhotoShop, go to the Window menu, select History. This will bring out the History panel; you can undo as much as you want by clicking exactly where you want to be from the History panel.
PICK COLORS FROM ANYWHERE
You can pick colors from anywhere on your screen comfortably with the use of the Eyedropper tool. This helps you to blend colors while designing efficiently. 
To do this, grab the Eyedropper tool, click and hold while you locate your preferred color. As you move, your foreground color changes. After that, you can use the color by getting the color code through the Color Picker; double-click the picker for your color.
EXERCISE
  1. Design a simple logo with text and a shape. Make the color of the text white and the shape blue.
  2. Draw a cube.
  3. Choose your color and do this: