A book recommendation for my Norwegian readers

I just purchased the following book recently, as I was looking for a book that described the bridges over the Akerselva river (my second favorite river after the Hudson River). As luck would have it, a couple of Sundays ago my husband and I stopped to drink coffee at Hønsa Lovisas cafe, and while we were waiting to be served, we took a look at the books on the small bookstand near the entrance. Akerselvas Bruer og Fosser (Akerselva's Bridges and Waterfalls) by Kjell Egil Sterten was one of them. I'm happy to support anything to do with local history, be it in Tarrytown NY where I grew up, or in Oslo where I live now. The author is a local historian and lecturer who clearly loves Oslo. You can buy it from different online bookstores; here are the links: 

Akerselvas bruer og fosser by Sterten, Kjell Egil. 9788230333198. Innbundet - 2016 | Haugenbok

Akerselvas bruer og fosser | Kjell Egil Sterten | ARK Bokhandel