Kaufe Jon Swanson einen Kaffee

Add a video message

Jetzt abonnieren

Sustaining subscriber

$5
/monat

  • Support me on a monthly basis

Book of the month

$15
/monat

  • Support me on a monthly basis

  • A book a year from me.

  • Book reviews

Research associate

$50
/monat

  • Support me on a monthly basis

  • Early access