This is a pretty descent book. It has all you need to know about the Incredibles 2 movie. I recommend to read this AFTER you watch the movie because it has many spoilers (but this review doesn't). I recommend this book.
Disney Pixar The Incredibles 2 The Official Guide
By DK (author)
Publisher: DK Children
ISBN-13: 9780241304877
ISBN-10: 0241304873
Published on 6/1/2018
Binding: Hardcover