An odd sort of book. I was enjoying it, and then the author would make a claim that just sounded patently untrue.
For example the bizarre statement, like: "Cabell’s illustrators – actually his aunt and uncle – based their visualizations on Tunbridge Wells, where they happened to live." Cabell's best known illustrator is Frank. C. Pape, and since the Cabells have lived in Virginia since the 17th century it feels awfully unlikely he would even have relations in Britain. (His mother also was born to a well-established American family). Perhaps he meant the illustrator's aunt and uncle ... either way, the book needs a better editor.
Or another odd moment: he implies that the term "shell-shock" is because "the scale and impersonality of high-explosive munitions shredded human subjectivity, shocked individual sensoria of the buffering of their ‘shells’." No, it's because the munitions themselves were called "shells" and the terror of being fired at shocked people, hence the term, not because one's own so-called shell felt shocked.
As I read it, I get increasingly less patient, with obvious errors of fact. He seems to think Toad (from The Wind in the Willows) is a character from Winnie-the-Pooh, which is an almost unforgiveable error. (Again, I don't know if it's an error of knowlege/memory, or an error of writing: perhaps he meant to distinguish the two, but as written, Toad's driving adventure is cited as an example of Milne's drawing from his own war experiences. Yikes). Both books were illustrated by the same artist, but they're very separate entities!
By the time I read that in The Midnight Folk, Kay Parker's pictures come to life and pull her into adventures, I was starting to suspect Adam Roberts was not a real person and is perhaps an AI creation, cobbling together slightly misunderstood accounts of these books. (Kay is a boy, for those of you who haven't read it, and the central character). I wondered if there is a Snopes.com for people, much as Snopes itself is a chance to double-check urban myths. Because it reads exactly like a 2025 AI text: grammatical, often interesting and helpful, largely correct, but occasionally completely looney-tunes.
So I asked Google Gemini, and it said Adam Roberts is a real person, and the story checks out: apparently he's a department head at Royal Holloway English Dept. at University of London. Which doesn't completely rule out his using AI to plump up some chapters, thought he show know better.
There are other odd choices, like how the book begins as a survey of written fantasy (which I expected), only to take an abrupt turn near the end and begin discussing film and TV and video games. There was little discussion of "fantasy in other media" until this point. Sure, video games may be recent, but we've had paintings, plays, opera for quite a long time, and film for well over a century, so if you're going to broaden your scope, why wait until the 21st century section to do so?
That said, it's a relatively good survey, and it touches on some antecedents often neglected in such a work. But the further it goes, the more it turns into vast book reviews: if you intend "a short history," don't delve into an in-depth discussion of Jonathan Strange and Mr. Norrell lasting over 3,000 words.
Ultimately I skimmed. Sorry. I recommend it for the earlier chapters. For the later chapters, you're honestly probably just as well off asking ChatGPT or Poe or Gemini or CoPilot to tell you about recent Fantasy books.
(My subjective rating scale: 5* = amazing, terrific book, one of my all-time favourites, 4* = very good book, 3* = good book, but nothing to particularly rave about, 2* = disappointing book, and 1* = awful, just awful.)