Nowadays, all scientific and industrial work is presented in the form of colorful maps, figures, plots, stereograms, rose diagram, histograms, and the need to plot all these from different software is a completely difficult task. So, to complete all our needs of plotting, GMT is introduced which contains many features .Just we have to learn how to write a script for that. It's not very easy, and it's not very difficult too.The software stores 2-D grids as COARDS-compliant netCDF files and come with a comprehensive collection of free GIS data, such as coast lines, rivers, political borders and coordinates of other geographic objects.GMT stores the resulting maps and diagrams in PostScript (PS) or Encapsulated PostScript (EPS) format.Most GMT users are geoscientists.In the next part, I will guide you how to download and install GMT in your system.Till then, have a joyful life.Take care.:)