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Some resources are free and others aren't. Why is that?
When you are using sources from somewhere like Wikipedia or Google, you will sometimes find that you don’t have the permission to read something. That’s because there are really two ways to access academic books and articles; paywall (where you have to be a university student to access them for free, or pay for access yourself) or Open Access (where the author has decided to share what they have written for free, for anyone who wants to read it). Researchers are a lovely bunch of people and they want people to read their work and so some of them chose to publish it for everyone! We love that so much at The University of Northampton that we do that too and you can read a lot of research done here by looking at our site, called PURE. Have a look and try typing in some of your keywords.