astra: This is a crash course on mind palaces offered by three-time world memory champion, Alex Mullen. After this series of short videos, you'll have a solid grasp on how to apply mind palaces as powerful learning tools. Meanwhile, go to 'Mind Palace' and start building your mind palaces on Astrasum.
astra: This is a 11-episode series done by WIRED. For each episode, an expert explains a complex subject in five levels of complexity.