If you are novice in Photoshop these tutorials dedicated to basic Photoshop tools will help you to understand how to use them.In this tutorial I will show you how to use quick selecting tools in the sidebar on left side of screen.
You can find there these basic selecting tools:
1. Rectangular Marquee tool – with right click on this tool you will get more options like Elliptical Marquee tool (mostly I use only these two from Marquee tools), Single Row Marquee tool and Single Column Marquee tool.
2. Lasso tool – with right click you can get more options as in previous case: Polygonal Lasso tool and very usefull Magnetic Lasso tool.
3. Quick selection and Magic Wand tool.