Inkscape is a drawing program that creates vector graphics, or shape objects. Which is different from pixel graphics where the image is made from a grid of coloured dots. It has advanced functionality for creating professional artwork. Inkscape is a free, open source program. So if you want to try it you can download it from inkscape.org and install it right away.
I love Inkscape, plenty of features and the interface feels intuitive compared to other vector editors (I learned vector graphics with Inkscape so might be biased).