This one seems to have the right level of details...
One good 1 line summary:
Three elements of this: Right to Access, Right to Be Forgotten and Data Portability.
... and some interesting general info:
The penalty for non compliance can be 4% of annual global turnover, up to a maximum of €20 million.
That's good for the people who make free software or free blogs ;)
PwC surveyed 200 CXOs of large US firms to assess the impact of the GDPR guidelines. The results revealed that a majority of the firms had taken up the GDPR ...with 76% of them prepared to spend in excess of $1 million on GDPR.
Yep... a nice regulation that costs over $1 million to implement...