On-line homework has become a familiar feature of most introductory college courses. Now they do the homework, but are they doing the assigned reading? Imagine a world where the students were assigned an interactive reading that you created. With students reading and answering questions prior to coming to class, you start the lecture on firm ground or can even flip part of the class. What does this cost the student? If you are already using WebAssign, the answer is nothing. This workshop will show how the WebAssign homework system can be used to write interactive tutorials. Topics will include formatting to give a professional look, inclusion of figures, videos, randomization and more. Examples will be drawn from a privately authored general chemistry textbook written entirely in WebAssign, but the applications go well beyond chemistry. The workshop is most beneficial to those with some experience writing questions in WebAssign. Time will be provided to work on a project of your design.