Here's a brief summary of the different videos in order.

1. Studying real-life references. It will be our guide to achieve a photorealistic result.
2. Studying some reference images to understand the feature that makes a desert looks like a desert, so that we know exactly what we should create.
3. How to prepare Blender for the micro-displacement workflow.
4. Creating the main shapes of the dunes, by using different textures in Blender.
5. Creating the small waves that are on the surface of the big dunes.
6. Some camera adjustment.
7. Creating even smaller waves on the sand surface.
8. Creating small rocks on the surface of the sand.
9. Displacement network overview.
10. Main Desert shader, and how to make it look realistic. There are many useful tricks and techniques that you will learn from this video.
11. Mian desert shader overview.
12. How to light your scene.
13. How to add background elements without increasing the render time.
14. How to add a sky to the scene.
15. How to add some dust to the scene.
16. How to add some mountains in the background without increasing the render time.
17. How to create the flying camera animation just like the one you see in the trailer.
18. How to break down your scene into different render layers, so that later on you be able to composite them.
19. How to optimize the render settings in Blender for fast renders.
20. How to composite your shot, adjust the colors and lighting, and finally how save them after finishing everything.