Technical Tutorials as a part of pre Data Science Conference events were organised at Science Technology Park Belgrade from 15-17 September. Over the course of 3 days, the participants had the opportunity to advance their Data Science skills with intensive hands-on lectures and sessions, by receiving the instruction how to use a certain tool and/or library. They’ve expended their knowledge through 12 tutorials dealing with Building and Running Big Data Infrastructure on Amazon Cloud by Cloudwalker, Python Fundamentals, Application of Machine Learning Clustering Algorithms on Geospatial Data, How to start Data Analytics in R, etc.