2023-07-27 (Word format) and 2023-07-27 (pdf format)

Cosmetic changes.

2022-06-22 (Word format) and 2022-06-22 (pdf format)

Cosmetic changes such as typos. Revision of the section "Assessing a Source's Credibility" by describing Wikipedia.

2021-07-11 (Word format) and 2021-07-11 (pdf format)

Mentioned in ch. 1 the need to be aware that your opponent is holding a position primarily for emotional reasons. Added remarks about the ambiguity of the Egyptian hieroglyphic language into chapter 2. More info about social media in chapter 4. There are some additional sentences in chapter 11 about statements vs. sentences and about formal reasoning applied to vague sentences.

2020-05-15 (Word format) and 2020-05-15 (pdf format)

Minor revisions regarding fake news and ad hominem arguments. Elabortion in chapter 6 regarding utilitarianism in chapter 6 and in chapter 13 regarding how to tell whether coin tosses and lotteries are biased. Revision of chapter 15 on scientific reasoning.  A few added exercises.

2019-08-11 (Word format) and 2019-08-11 (pdf format)

Fixed typo in table of contents. Changed Word format from .doc to .docx. Made the book be 803 compliant for readers with disabilities.

2019-07-07 (Word format) and 2019-07-07 (pdf format)

Revised chapter 1 to say scientists are the best example of a group of critical thinkers. More information was added about how to locate implicit premises. Revised chapter 5 on the red herring fallacy. Moved the section "Giving Too Many Details" from ch. 4 to ch. 5. Added a lawyer joke into chapter 2 in the section on explanation, plus a new concept check. Inserted into chapter 12 some Venn-only diagrams, and added explanation of the limitations of the Venn-Euler method. Revised some miscellaneous typos and added some cosmetic reformatting.

2018-09-20 (Word format) and 2018-09-20 (pdf format)

Revision of chapter 14 section "Inferring Cause from Correlation;" removal of typographical errors; reformatting.

2018-07-07 (Word format) and 2018-07-07 (pdf format)

Revision of chapter 13 section "Statistics and Probability" and the chapter 15 section "What is Science?"

2018-06-22 (Word format) and 2018-06-22 (pdf format)

Revision of the early pages of chapter 15.

2018-05-21 (Word format) and 2018-05-21 (pdf format)

Revisions to scattered homework problems and miscellaneous paragraphs. New version of chapter 4.

2018-01-01 (Word format) and 2018-01-01 (pdf format)

New joke about pseudoscience in Ch. 14; fixed typos in Chapter 3.

2017-12-13 (Word format) and 2017-12-13 (pdf format)

Revision of Chapter 11.

2017-12-02 (Word format) and 2017-12-02 (pdf format)

Addition to the section Exaggeration and Lying in Chapter 7.

2017-11-17 (Word format) and 2017-11-17 (pdf format)

Some revision to the section on Misinformation and Fake News in Chapter 4.

2017-11-14 (Word format)

Some revision to the section on Misinformation and Fake News in Chapter 4.

2017-11-10 (Word format)

Added a concept check to the section on Misinformation and Fake News in Chapter 4.

2017-10-13 (Word format)

Minor changes to the section on Misinformation and Fake News in Chapter 4.

2017-10-04 (Word format)

Substantial changes to the section on Misinformation and Fake News in Chapter 4. 

2017-09-24 (Word format)

Expanded the section on Misinformation and Fake News in Chapter 4.

2017-06-06 (Word format) and 2017-06-06 (pdf format)

Fixed typos.

2017-05-23

Fixed typos.

2017-03-07

Fixed typos.

2016-04-26

Fixed typos.

2016-02-21

Fixed typos.