This is a "Giant Sticker Activity Book" from Bendon Publishing. It is a book. It contains stickers. It is (by standard sticker book sizing) indeed quite Giant.
The book is 8.1" x 10.8". The first part of the book contains 32 pages of activity pages printed in what might technically be called "full colour", although many pages are very heavily overwhelmed with red and/or blue backgrounds.
The second part of the book consists of 24 full-colour glossy sheets of stickers. The first 16 sheets of stickers are expressly intended to be applied to specific places in the preceding "activity pages". The remaining 8 sheets of stickers are "bonus stickers" for general play.
The book is well-constructed, and surprisingly heavy. The stickers are sharp, bright, and attractive.
It's not particularly cheap — selling for around US$12 on Amazon for a product which technically contains only 40 sheets of content. But high-quality stickers will always push up the price of any product, and this one is no exception.
If your budget can deal with it, then this sticker book looks like a pretty safe investment if you need to impress a young Spider-Fan. You just can't go wrong with this many glossy stickers.
Note: I did read a review on Amazon that complained about the stickers being poorly cut and very hard to remove. My copy didn't seem to suffer from that particular problem. By simply bending the sheet at the edge of the sticker, I had no real problem in lifting up the edge of each sticker. Admittedly it did require a certain level of manual dexterity, a five or six year old may perhaps find it rather frustrating.