SCP
scp-wiki.wikidot.com
Secure
The Foundation secures anomalies with the goal of preventing them from falling into the hands of civilian or rival agencies, through extensive observation and surveillance and by acting to intercept such anomalies at the earliest opportunity.
Contain
The Foundation contains anomalies with the goal of preventing their influence or effects from spreading, by either relocating, concealing, or dismantling such anomalies or by suppressing or preventing public dissemination of knowledge thereof.
Protect
The Foundation protects humanity from the effects of such anomalies as well as the anomalies themselves until such time that they are either fully understood or new theories of science can be devised based on their properties and behavior. The Foundation may also neutralize or destroy anomalies as an option of last resort, if they are determined to be too dangerous to be contained.
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Is the show based on the books or is it doing its own thing?
AFAIR they are almost completely separate.
Pretty much doing it's own thing. Other than the titular character and the idea of "everything is connected", there's not much connection to the books.