This course is about teaching how to write scientific paper effectively. As scientists we are also writers and a good writing skills is as much important as a good coding skill. It is the aim of this course to teach basic tools to organize ideas, find the important story in the research and clearly express the ideas in a paper. This course is organized into 10 short lectures followed by group discussion and short exercice. This final goal is to have a paper written down by the end of the course.