What can one say about one of the great books of analytic philosophy? I met Sir Alfred Ayer years ago when I was a graduate student at UBC in Vancouver, Canada. I was invited to a dinner with him along with a number of other grad students. I rushed through the book in order to be conversant at the dinner. I must admit the first time through the book I didn't understand a lot of what he wrote. Nevertheless, I have now reread the book a number of times and find his insights into analytic philosophy invaluable, especially for a good understanding of logical empiricism. If you are a beginning student in philosophy this is a must read.