Yes, "The Little Kingdom" is a great book (the very slightly updated edition is called "Return to the Little Kingdom" but really just adds a short epilogue), and in my opinion (having read most of them), the best book on early Apple. It gives you more insight into some of the other characters at the early company (Mike Markkula and Mike Scott for example) than some of the other books. Interestingly, the author, Mike Moritz (a lot of Mikes), went on to be a highly successful venture capitalist. So he must've had some keen insights about the tech industry.
I was a guest on a podcast called "CFO Bookshelf" to discuss that book if you want to hear a discussion of it before making the commitment to dive in:
https://cfobookshelf.com/return-to-the-little-kingdom/