Once I decided to become a Treehouse builder I wanted to know how it was done.. and how issues like ‘safety’, ‘construction’, ‘tree-friendlyness’, ‘sustainability’, ‘durable wood and materials’ etc are dealt with.. As Treehouse Building in the US has developed into a serious professional business during the last few decades, I decided to go to the yearly International Treehouse Convention in Takilma, Oregon. The workshops are hosted by the experts on treehouse building.. such as Michael Garnier and Pete Nelson. Back in Holland I quit my advertising job.. and started this – still – amazing adventure.