If you are interested in the history of the 911 I can highly recommend the book titled "Porsche 911x911" 3rd edition by Porsche Museum. It has 911+ pages mostly filled with beautiful photos and some additional information. Here are some pages to give you an idea. The book is available on Amazon

Size of the book; can't show the weight, but it's on the very heavy side.  

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TOC;  all texts in the book are in the shown languages

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didn't know that the wheel design of 4tracs new Turbo dates back to 1966

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Uncommon use of a 911. Maybe a new option for the 992 :)

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If you didn't know why it's called 911

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Last but not least, I just love the old ads

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