This is the first Star Wars book, and it is a genuinely strange object: an adaptation of a film that did not exist yet, published six months early, credited to a man who did not write it, describing events that would not quite happen that way.
What it actually is
Alan Dean Foster wrote it from a draft screenplay, under contract, with George Lucas’s name on the cover. That production history explains almost everything odd about it. The prose is working from a text still in motion, so the book preserves material the film shed — the Anchorhead sequence with Biggs Darklighter, a considerably chattier Luke, a Jabba the Hutt who is a large human-shaped gangster rather than a slug, and a general sense that the Empire is a recent and slightly shabby development rather than an eternal fact.
The Journal of the Whills
The framing device — the whole story presented as an extract from a much larger chronicle — is the single most consequential thing in the book. It establishes, on page one of the franchise’s first prose, that this is a history being retold rather than a story being told, and the entire subsequent publishing programme is downstream of that posture.
How it reads now
Not well, on its own terms. Foster is a capable professional writing fast to a deadline, and the result is functional: the action is clear, the descriptions are efficient, and there is almost no interior life anywhere. Vader is a subordinate. Obi-Wan explains things at length. The Force is described in terms that later material quietly abandoned.
Why it matters anyway
Because it sold out its first printing before the film opened, and that fact is the origin of the entire Star Wars publishing industry. Somebody at Ballantine took a bet on a science-fiction film nobody had seen, and the same author was already under contract for the sequel novel that became Splinter of the Mind’s Eye. The Star Wars shelf begins here, commercially and formally, before the film it describes had opened.
Canon status
Star Wars Legends, and one of the odder cases: a novelization of a canonical film that is itself no longer canonical, because the details do not match the film that was actually released.
Who should read it
Historians and completists. It is a short book and a fascinating artefact, but if you want the story it tells, the film tells it better in two hours. Read the dispatch on the pre-1991 shelf first for the context that makes it interesting.