Good book. Some language is dated and it does suffer from assuming that the person reading the book is an academic (uses terms and brings up ideas that it doesn't explain that people not well-versed in its subject matter won't understand). Overall it's very enlightening and definitely made me think a lot about my own education and the public schooling system I grew up in in modern USAmerica, despite the author being a Brazilian writing broadly about 1960's Latin American education. 

Don't necessarily think Freire's binary of "oppressor/oppressed" is helpful when examing education considering people can be oppressed while still oppressing others (which Freire acknowledges... but he thinks people exist in a static state of either being one or the other for a period of time, while I think it's just an unhelpful binary!)