There is no doubt that Kitto's book is dated, and as a result there are numerous questions and issues over the text. Preceding reviews have pointed some of these out, so I may be repeating myself in the following critique, however I will also endeavour to present some positive observations on 'The Greeks'.
First off, this is NOT a generic history of the ancient Greeks, but more a discussion and analysis of the ideas and constructs that formed historic and contemporary ideas about them. Yes, Kitto does write in some degree of chronological order outlining key events and people, and looks for historical understanding of causality and effect through some consideration of the relationships between these elements. However what Kitto is really trying to do with this text is to reconstruct how he believes an ancient Greek persona was formulated through examining particular themes. Perhaps the most overriding one of these themes is that between the ancient Greek as posited by Kitto with his interpretation or construct of the polis. There is a lot to be said in favour of how he makes clear the centrality and the alien aspects of this construct in the social, political, cultural, economic and familial life of ancient Greeks. This includes some valid arguments regarding how we as modern peoples will be confronted and perhaps confused by such a framework for the people who identified as Hellenes during the middle centuries of the first millennium B.C.E. Kitto makes it clear that how we interpret the experiences of those living in ancient Greece must be conditioned and informed by an understanding of the multifarious aspects of the polis.
Another avenue through which Kitto tries to establish his historic understanding of the ancient Greeks is via the language used by the composers of his literary sources. It is most commendable that the author makes so many consistent attempts at deconstructing and reconstructing the historical conceptualisation of the ancient Greeks through closely analysing meaning and context as original posited in their language, then (possibly) misinterpreted or misconstrued by more recent historians. Arete, Theos and Kalons are just three of these prime ancient Greek constructs that are pulled apart and given a far more nuanced historically apt reading by Kitto might be expected. It is an important reminder to anyone attempting to study a foreign, possibly ancient, society that translation and interpretation have to be front and centre in any initial considerations.
I have endeavoured so far to posit two influential and positive aspects of 'The Greeks'. There are others that I could mention in great detail, however I think it is now appropriate to switch to the less adequate aspects of Kitto's work.
There is no doubt the age of the book is a problem, and as there are literally hundreds of later texts or other explorations of ancient Greece that have been published since this title was first released, it will not reflect the most modern scholarship on the subject. Ancient historians in the early 21st century have an amazing range of texts they can call on with a vast and disparate intellectual range of historiographies embedded in said books. Kitto's approach to his subject is not wrong per se however it is restricted because of its timing and the context of the author's composition.
This can be seen most clearly in his use of evidence, and his efforts at trying to present an idea of an ancient Greece that is mostly patriarchal, economically advantaged and focused on the social elites. It could be argued that the former issue creates the latter, in that because Kitto's arguments are almost entirely developed through his reading of literary evidence, he is drawing on the very social, political, gender and economic bias of those who wrote his sources. There are times he makes some interesting and valid arguments about what is said in his sources, and compares and contrasts them effectively where appropriate. However Kitto is an admirer of Pindar, Sophocles, Thucydides, Demosthenes etc, and he is not always able to disassociate his love for their work from more evolved historical analysis. He's perfectly right when he notes that our sources are disparate in range, context, authorship, etc, however I don't believe he does enough source analysis to ensure the reader is given a less biased understanding of Kitto's arguments. It's rather disappointing that epigraphic, archaeological and numismatic evidence is given far less prominence when in fact these avenues would have helped widen his historical theories, and made them more valid for the reader.
Stemming from this set of issues with 'The Greeks' is that Kitto does not address a broader construct of 'who' the ancient Greeks were, with a subsequent facile discussion of those who sat outside his focus. In a book that is approximately 250 pages long, there is only about 20 pages maximum allocated to trying to unravel the historical issues related to how ancient Greek women lived, their role in society etc, as well as slaves. Some of his points in these areas aren't bad, however it is a seriously jarring note to see such a text that aims to explain how ancient Greek society, politics, literature, culture represented and related to itself be so limited in its awareness of gender and class.
Before I close this review, a couple of points re Kitto's prose. It's at times a little dense and rather too self-involved, and I was also not happy with the reliance on sizeable chunks of translated source quotes (especially in the chapter on Homer). This is not a book for the layman; Kitto expects more scholarly capability from his reader than what may be suggested by the description of the book. The lack of a relevant and comprehensive bibliography is also to be regretted.
In summary, this isn't a bad book, however Kitto's dated history of the constructs of ancient Greece is limited. I am sure there are better books out there on the subject.