I wrote a book about critical thinking. I’m not that intelligent, but I’ve read the thoughts of many folks who likely are. I took the best of these thoughts, credited the authors when appropriate, and put them in short illustrated sections to help in the critical appraisal of issues and situations.

Checking with fact-checkers on issues is important. Finding multiple reliable sources of information is also vital. Certainly, one of the biggest problems today is the proliferation of misinformati...