Sure, no kids in the history of the world ever talked like the Peanuts characters, but that was deliberate. The Peanuts kids were never supposed to be "real" kids -- as if the funny pages, then or now, ever had anything like real kids -- but something like small adults, and something like pieces of one person's psyche personified, and mostly just characters in the stories Schulz wanted to tell.
So many of the strips from Peanut's golden age are gems -- there are dozens just in this book along -- that this series really is a must-have for anyone interested in strip cartoons. Schulz is just that dominant, and that good; every gag-a-day strip after him was either influence by Peanuts or deliberately running away from it.
I'll leave you with two of my favorite strips from this book, both of which show the amazing depth of emotion "Sparky" Schulz could bring out of a few pen lines and some well-chosen words. Click on them to enlarge.