While I cannot speak to the relative strength of this work as an introduction to Raymond Williams' thought, I can say with great confidence that this is a fantastic, highly consumable first foray. The ease of reading that one experiences throughout is a product of the Williams' alarming ability to speak to deeply intellectually embedded social and cultural problems with the ease of everyday language. In that way he is a great successor to Marx's own writing, which was capable of being listened to and understood by the everyday worker during breaks where (one of often very few) literate workers would read Capital aloud to them.
I want to avoid summizing each work, because Williams will speak better to each of them than I ever could. However, what I will say is that there are two very common themes, intimately intertwined: the first is the idea that the production, or formation, of our cultural values and ideas are precisely that - a product of our society. The second is an ever pervasive and subtle shifting of our everyday assumptions about key, common words that eventually lead us into a much deeper and probing set of questions and understandings.
These are connected because what Williams' work seems to be emphasizing is that since culture is a production of values, culture is itself a historical process just as the material world is. As such, it is something we can change; something we have control over just as much as it has control over us. 'Good Taste' in the 'Fine' Arts is a constant example of where, without much thought, we believe in this idea of certain arts being more refined and as such more artistic, valuable, or aesthetic. However, if we really look back in time and study the history, the acceptance of certain art as The Art, or Good Art changes over time. Suddenly, we find ourself talking with Williams about Fine Art not as some objective type of art, as many of us took it to be for most of our life, but as a status given to certain types of art during certain historical epochs.
Additionally, there is a real cleverness behind Phil O'Brien's selection of texts, especially when one considers the alleged novelty of some of the collected essays; and it is his well thought out structure that makes this such a wonderful book to become acquainted to Williams through. My favorite example of this is the pairing of the 7th and 8th essays. The former, "Pierre Bourdieu and the Sociology of Culture", is cowritten with an individual named Nicholos Garnham, and is easily the most abstract and dense text in the collection. It walks through the core of Bourdieu's theory, which is an ultra-gamified explanation of the relationship between classes in society and its culture. It explains, in abstract, mechanical terms, how society can have an overall culture that produces different cultural perspectives and motivations across classes, and it fits into this schema the roles of the intellectual and the artist, and why their works are, by necessity, created in capitalism for the Bourgeois and in an unapproachable way (each for a very different reason). It is very enriching, but a hard turn from the type of approachable language Williams employs in every essay before it. The 8th essay then begins with an absolute brow beating of the use of abstract language - a hilarious commentary on an aspect that the previous essay got so wrong while speaking about something so right. By the beginning of that essay one is immediately left with the impression that Williams made certain sacrifices in the previous coauthorship.
Anyways, read this incredible book if you're interested in cultural studies and/or Marxism - its immensely rich and there is so much a small review could never cover.