**Description:**\\ In the tutorial we are going to explore how pulsar timing data is used for direct gravitational wave detection. The basic concepts as well as the current status of pulsar timing arrays are going to be covered. The hands-on session will focus on the cutting-edge data analysis techniques used for gravitational wave search in pulsar timing community. In conclusion, we are going to perform a blind search for gravitational wave signal in realistic pulsar timing data. \\ \\ **Software:**\\ Docker, singularity