I'm considering reading the book by the title How to read a book. A friend of mine (his critical thinking is quite good, but certainly not as good as it could be, so I can't trust his opinion too much) said he has read it and that it helped him a lot. He said it had advice on reading comprehension, critical thinking ("don't automatically accept what you read") and that when people read something, they tend to forget it quite easily (and that the book addresses this issue). But he also quoted a part of the book, which said that only reading hard things will improve your reading - it might be true, but it doesn't sound intuitive to me (according to my rationalist intuition, obviously :D). Also, the book is written in 1940 and revised in 1972. Additionally, the author is religious (I think he's even highly religious). And if I remember correctly, it's not based on research - there is a quite high chance that I don't remember correctly. I checked its Amazon page, nothing said anything about research (browsed through all the low ratings to see if they complain about that, nobody did).
Should I bother reading it? If it delivers what it promises, it will obviously be so cost-effective that most rationalists should abandon reading whatever they're reading and switch to this book. But is there a version that is entirely based on research, with references or sound theory behind most claims?
As Rain said it is based on the book.
The more I read your post the more difficulty I have in answering. I don't know how valuable your time is, so cannot say if this book is worth your time or not.
It is not worth mine, but, alas, it was once.
If you read a book by starting on the first word and going to the next one until you arrive at the last one, then read it, the first half.
If you never read a book arguing for the classics, then read it, the second half.
Or instead of following what I say skim it, and decide if it is worth your time.
Even better, use the algorithm above on a book that you know is worth your time, and if you find the algorithm worth it, then you can infer that the book may also be worth it.
cheers