All sources for which this site, as well as the books, have been built, have carefully and meticulously been sought:
Cross-referenced,
fact-checked and
de-bunked,
before being used.

The vast majority of said sources, are:
Peer-reviewed Meta-Studies.
As un-biased as possible.
And most importantly:
Publicly available for free, without requiring any form of log-in/subscription.

Sources are provided as embedded links in green, exactly where they are relevant, instead of numbered asterisk you have to remember and dig for, later on, breaking the flow of reading, and disturbing the overall aesthetics of the reading experience.
The links open in a new tab/window for easy access, for instant or later reading, while keeping you where you were. 

I strive to link directly to any given master-source/study whenever possible, as long as they are not pay-walled.

Other times I link to articles that at least reference the main source, if the articles are either:
More easily understandable,
links to more knowledge on the given subject,
or simply if it is more entertainingly written, while still being factual : )

Many links contain specific highlights to given sources, on devices supporting such sorcery.
Others are provided for the sake of piquing your interest to dig deeper any given subject, if you like.

All in all, I try to keep it:
Entertaining while educational.
Fun while serious.
Truthful, while sometimes tongue-in-cheekly, saying something ridiculous or over-done, to keep you on your toes and to maintain your own critical and rational mind engaged, at all times.

I don’t want you to take my word for any of it.
Quite the opposite:
I WANT YOU TO QUESTION EVERYTHING,
AND
COME UP WITH YOUR OWN ANSWERS!

With all that being said:
Happy reading!