This could have been a great little book. 8,000 entries - how can that not be useful? Here's how.
First there's the shoddy, vague definitions. Assume I don't know what HTML means. I look it up:
'a series of special codes that define the typeface and style that should be used when displaying the text'
What text? Where? What are these 'special codes' and are they really in a series? With half of the entries you'll be more confused than you were before.
The vast majority of terms, however, just treat you like an imbecile. 'Finished; adjective; having been completed'. Er, yeah... I can't tell you how many times I've been caught out by that one. And don't get me started on how this 'dictionary' just defers meaning, like it did just then.
And then there is the plain dubious. 'Editorial department: a department in a publishing company which deals with the in-house editing of books'. That's not really what the editorial department spends most of its time doing, is it? No mention of acquisitions, contracts, author schedules? The definitions of the terms you know will shake your faith in this book to the degree that you'll never be able to trust the definitions of those you don't.
Despite the stack of books on the cover, this is really a dictionary of newspaper printing (for idiots) that will in fact mislead any would-be book publishers. Avoid like a misery memoir (and if you don't know what that is, I'm afraid this book doesn't either).