If you want to learn how to do pop-ups, this book is the best place to start! I bought quite a few different books in the area that ranged from covering basic pop-up tecniques for greetings cards to technical books for more complicate projects. Really, I only needed this one book - 'The Elements of Pop-Up' is a fantastic book that actually has all the pop-up examples made up on the page so you're not just looking at pictures thinking 'where do I put the fold??!' - there are tips and instructions but you can figure things out just by looking at the ready-made examples.
As well as all kinds of pop up examples (basic & more complex), the book also includes a selection of wheel mechanisms and pull tabs which would be invaluable if you are making a pop-up storybook that requires the reader to 'pull the tab' to animate the pop-up. The tips are really useful here but you can also lift up the page flap and figure out how it's put together just by looking at what's going on underneath the page!
It doesn't matter whether you are just a hobbyist or a design student, a graphic designer or anything else, this is highly recommended to all who are interested in paper art/pop-ups/paper engineering! It's well laid out, easy to follow and just a fantastic buy!