This one tells the story from the precursors to time-sharing to PARC, using the figure of J.C.R. Licklider as a pivot, and was recommended by Alan Kay as better than Dealers of Lightning. I personally enjoyed both.
And of most of the participants at ARPA-IPTO and PARC. "Dealers of Lightning" was too much of the "hero's journey" trope, and also very confusing in sequence (even to those of us who were there). Both books missed how and why researchers cooperated and coordinated across projects, but "Dream Machine" is much more clear and generally more accurate.
This book really is fantastic - if you work on anything related to the web and don't know the history of the ARPANET and how it was the foundation of the internet we know today, I highly recommend checking out this book.