Unity’s Visual Scripting allows you to create the logic for your Unity projects without writing actual code. Whereas traditional scripting in Unity is done in the C# programming language, Visual Scripting is a visual “language” that lets you diagram your instructions. For example, these two scripts do the same thing — they are just written in two different languages.

Here's a few videos from SRCoder on setting up and using Bolt.

This is aimed at beginners and no programming knowledge is required! So if you haven't programmed but want to learn in a fun and easy way, this is a good place to start.

These tutorials start you in making a simple 2d platformer in bolt using a framework. Written instructions are included https://learn.unity.com/project/bolt-platformer-tutorial?_ga=2.24017402.1592062709.1610919300-1767016595.1580189278

Please note that some of the instructions are omitted and help is given in the comments section.