The aim of this thesis is to examine the collaboration between Librarians and Teachers using the Continuing Professional Development called Critical Use of the Internet. It is a digital education provided by the National Agency of Education. The aim of Critical Use of the Internet is to give examples of how to teach Information Literacy and to inspire Librarians and Teachers to collaborate in the process. The subjects I have been looking into are: How do schools work with the digital education Critical Use of the Internet? What skills identifies a Librarian and what skills identifies a Teacher? How do they use their unique skills and how do the different professions work together?