For "An Introduction to Literary Criticism," McKnight assumes the reader is familiar with a fair deal of jargon: historicism, poetics, structure v. form, etc. His explanation of structuralism was hollow. I think I understand it less after than before.
Robert Detweiler's review on the backside claims that this book "should be a great help to biblical scholars seeking to acquaint themselves with this confusing array of stances and methods." Is the book introductory or for people with background in the subject?
I can't properly rate the book considering I didn't finish and that it wasn't what I expected - giving it a review for being MORE than anticipated is unfair.
Not all of the book deals explicitly with Biblical criticism, so if you're uninterested in the topic you could still get something out of it. But if you want a true intro I recommend the Yale Lecture on Literary Theory, on YouTube.
Read if you are somewhat versed in literary theory or have interest in reader-oriented critical theories.
Don't read if you're looking for a "start from zero" introduction or expect lucid prose. This book is far from an "Explain It Like I'm Five" work.