In this video tutorial series you will get an introduction to Unitys new Shader Graph coming in Unity 2018
Video one – Installation and rendering pipeline
Video two – Channel Packed Standard PBR Shader
Want to learn how how to code shaders from scratch in Unity, check out this highly rated Udemy course.
Shader graph is still in beta and and it will be interesting to see if they can compete with this third party tools that is much loved from the assets store.