This is a good introduction. It has chapters on Plato's 'Life and times, on 'His forbearers, a chapter on' How Plato became a philosopher' one on ' Understanding Plato' one on 'Knowing Things' on 'Definition, dialectic and the good,' on 'Education and the Good Life' on' The Divided Mind' on 'The Authoritarian State' on 'Plato's achievement'. Hare apologizes for not having had the space to really consider Plato's views on Art, and on Love.
I found especially interesting his background description of the Greek world of Plato's time, and their attitude toward 'power' and 'violence'. This background really helps the reader understand Plato's search for a kind of ideal social order. And this when his absolutist solution is of course strongly rejected by the Western liberal democratic political tradition.
Many of us first learned our Plato with Whitehead's famous remark that all Western philosophy is a footnote to him. Hare does do a bit toward showing how Plato is at the foundation of many philosophical dilemnas , metaphysical , ethical and political which still concern us today.
He also provides a brief description and periodization of the Dialogues.
What is missing from the work is the feeling of the Platonic dialogues themselves. They have a dramatic and aesthetic power that is unique in the philosophical literature.
I would just add to this review one point Hare makes not especially related to Plato which seemed especially interesting and important .He writes," Originality in philosophy often consists not in having new thoughts, but in making clear what was not clear before" It seems to me that it also consists in what Hare does indicate Plato often does , raising questions of such great significance that coming generations take them up again and again.