David Galloway

Obsidian is a wonderful took for PKM that has been invaluable in my graduate studies and Nick Milo is the best Obsidian teacher I've found. I highly recommend both his Obsidian Flight School and his Linking Your Thinking PKM course.

I've used the LYT Kit and some of Nick's other class materials, and the information and presentation are all wonderful. Highly recommended if you want to dive into PKM and/or Obsidian.