This workshop is organized in parallel with the different sessions of the conference. The License of Green Computing User looks at how to adopt the best practices in using technologies in an eco-friendly way. The workshop participants learn how to use their smartphones, laptops, personal computers, printers and other devices efficiently and decrease thus their energy consumption. At the end, a test is organized for the candidates according to what they learned during this workshop. Certificates of Green Computing User’s licenses like driving licenses will be attributed to research and engineering scholars who passed the test successfully.