This book was an interesting read. Being that it was written in the late 60's, it's relevance to today is not as pertinent as it was in its time. At the same time, I think it does have something to contribute to today's educators, and, while taking it within its context, should be on the MUST READ list for anyone studying education.
Kohl wrote this book as an attempt to revolutionize the schools and teaching styles of his time. He introduced new and radical concepts that were in stark contrast with the very rigid and narrow styles of education that existed in that period. Much of what he suggested has since been incorporated, and is still being incorporated, into the educational system. At the same time, it seems that his theories of the ideal school were merely in reaction to what was the status quo at the time - he didn't fully think through the ramifications of his ideals. For example, he stresses the importance of not enforcing a curriculum on the students. He seems to suggest creating an environment rife with learning opportunities, then allowing the students to educate themselves through their own interest and motivation, the teacher acting as a sort of facilitator and casual role model. What he describes seems to be a sort of intense microcosm of the world at large. He doesn't seem to place enough attention or focus to the idea that school is meant to ensure that students have basic skills in areas such as spelling, grammar, and math - only a brief mention of this comes too little and too late (in my opinion) at the end of the book.
Kohl was clearly leaping off of the existing extreme of his time, and attempting to get to the other extreme. I am curious as to whether he published after this work, and how his views changed both as he saw his ideals unfold in certain school settings and as he watched society evolve.
Regardless of the efficacy of his overall ideal, I think this work should be treated as a classic. He certainly brings up points that would shake up the accepted knowledge and expectations of anyone who deals with children. I would consider this book a must-read for any critically thinking parents, teachers, teachers-in-training, and administrators.