Martijn and Frank have written a new book: Verder met Obsidian.

It’s a Dutch-language book, and the official book launch will take place during the PKM Summit — which felt like the perfect moment.

At the venue, there will be a book stand hosted by our publisher, where both Starten met Obsidian and Verder met Obsidian will be available.

International editions on Amazon will follow soon. 📚