Blender 2.8 features a brand new 2D drawing and animation toolset. Become proficient with Grease Pencil thanks to this course with Matias Mendiola, story artist and member of the Grease Pencil team.
To follow the training, make sure you are using the latest Blender 2.8 and in this other page: Resources to get started with Grease Pencil you will find everything you need from links to free blend files, showroom videos and more.