i read some books about bitcoin to find out what it is, i think Beyond Bitcoin books by Hanna Halaburd can describe what bitcoin really is.
i got it from link below:
http://cryptobookland.com/index.php/pro ... s-sarvary/
Bitcoin.com is just one domain name used to promote Bitcoin. Bitcoin.com is not an official website. Just like nobody owns the email technology, nobody owns the Bitcoin network.
As such, nobody can speak with authority in the name of Bitcoin.