In addition, let's take a look at your set of world coins. At present, I am exposed to a product containing about 80-90 coins from all over the world, and the cost is about 68-80 yuan. Generally speaking, this kind of gift book has no collection value and no room for appreciation.
So if you have some expensive commemorative coins in this book, that's another matter, so according to the publisher and product name you provided, I infer that this book is just a gift book.