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JakeAl · 2018-05-11 · Original thread
This site is a simple and straightforward primer on critical reading and writing and hence thinking: http://criticalreading.com

But while most books on critical reasoning and thinking are decent, so far this is my favorite as it addresses barriers to critical thinking and the various types of logic pretty well: https://www.amazon.com/Critical-Thinking-Introduction-Gregor...

I was even able to download a previous edition as a PDF for free.

View this Book on Amazon