Links to Amazon (Ebook, Paperback, Hardcover):
https://www.amazon.com/dp/B0D96W2NSJ
Link to Barnes & Noble (Hardcover and Paperback):
https://www.barnesandnoble.com/search?q=Geir%20Sivertsen
Link to Ingramspark (Hardcover and Paperback):
https://bookshop.org/beta-search?keywords=Geir+Sivertsen (sometimes not responsive when searching specific titles)