Professor Andersson is currently active as skateboarder. He started again 2015 following a long break. Now in 2020 he skates with his friends at least once a week and often twice. Not only ramp and bowl but also freestyle and some slalom.


Book on the history of skateboarding.

The book was released 2 april 2016.


Signature board together with the two co-authors of the skateboard book.

Tony Hesse manufactured the board for Cash Skateboards and Prof Andersson came up with the design.



Responsible for a website dealing with skateboard in Norrköping, launched 3 April 2017.



In 1981 Gerhard and his friend Mikael played in a punk band called Obstipation. After that he went into heavy metal and then big band student music and jazz. Then he had a long pause from music. Obstipation started again in 2016 and together with a third band member (Gareth) they play "unplugged" music and rehearse on a regular basis (with occasional small gigs). Mostly covers but one tune from the early days called "sport" is on the setlist (see facebook for examples).