A slow read only because critical thinking is hard! It’s a good introduction to critical thinking skills that would benefit humanity for us all to have. Having read this book doesn’t automatically make one an expert, as you realize it’s practice and exposure to argument that makes one sharper at knowing the difference between strong and weak positions.
I would add that this book is very dated and geographically-specific for its examples. Namely, Ontario-focused and using topics relevant to geopolitically-savvy adults in late 1980s Canada: GST-implementation, the abortion and capital punishment debates, the Meech Lake Accord, communism in the northern Ontario labour movement, Ontario teacher strikes, the popularity of the Mulroney government - they’re all here! It’s a time capsule for Canada from a very particular era. If you remember this time and these events, then you’ll do fine.
An introduction to critical thinking. The books goes through some basic terminology in an expansive way. Whereas some of the concepts are certainly useful, the overall feeling is that the book could have been compressed significantly. Moreover, I realized that the differences between editions are extremely minor (in case somebody contemplates buying a second-hand older version).
Unfortunately I have not and will most likely not read the forth and last part. And thus my review should be taken as a critique of the first 3 parts (up to chapter 11). I do not think this is an interesting enough book for self-teaching, although I must confess I have not read other books on the topic. If philosophy is what interest you, though, many other introductory books will expand your intellect in a much more efficient manner