This is a 16-page staple-bound book of "mazes and colouring" which I believe comes from the UK, judging by the fact that the word "Colour" has a "U" in it, while the licensing information on the back of the book is printed in both English and French. I guess it doesn't really matter - since it's printed in China like 90% of books these days.
The book is 8.2" x 10.8" with a stapled cardboard cover. Inside are 16 pages of black and white printed content consisting of 4 colouring pages and 12 mazes. In addition there is a sheet of stickers at the front with 20-odd stickers.
Each page has a place where a specific sticker is destined to be placed. Then you can trace a path through the mazes. Or you can trace the mazes first. Or even do the colouring pages first, mazes next, and leave the stickers for last. The possibilities are endless!
I don't have any particular affection for the Marvel Super Hero Squad, and I didn't get the impression that the people who produced this book had any particular affection for them either.
There's no characterisation, no sense of artistry, and no continuity.
This is a box of cold McDonalds french fries. There's marketing, and empty calories. Plus I guess it keeps the kids quiet for ten minutes.