I just found this out today.  The book, "The Computers That Made Britain," is available as a free e-book or you can purchase a hardcopy at:

https://wireframe.raspberrypi.org/books/computers-that-made-britain

Among the various platforms, CBM computers that are covered are the PET 2001, VIC-20, C64, and the Amiga.

          Leaving out other CBM computers,
          Robert Bernardo
          Fresno Commodore User Group -
          http://www.dickestel.com/fcug.htm
          Southern California Commodore & Amiga Network -
          http://www.portcommodore.com/sccan
          Nov. 6-7 Commodore Los Angeles Super Show 2021 -
          http://www.portcommodore.com/class

--- SoupGate-Win32 v1.05