Pamela is an English major and novelist. She writes this historical account of AI from the perspective of personal interviews she conducted with the people who made (significant parts of) the history.
I like the unconventional 'story-like' way in which she writes this and she freely admits to not be a conventional historian - it does not matter. Nice book for easy reading of an otherwise potentially difficult subject to get into.
It is not comprehensive and you are getting perspectives from a select group of individual researchers - but again this is admitted up-front and, again, I don't think it matters as long as you bear that in mind.
Do not expect to learn technical / mathematical details about AI - there are some attempts at explaining key technologies in terms that a layman would understand - but it is not a science textbook - its a history.
This review is of the 25th anniversary update edition.