Best Free Tools for Beginners in Graphic Design

I recently started learning graphic design and I am interested in finding good free tools that beginners can use to practice and improve their skills. Many people recommend software like Canva, GIMP, and other online design tools, but I would like to know which ones are best for learning basic concepts such as typography, color combinations, and layout design. I also want to understand which tools are good for creating social media graphics, logos, and simple posters. If anyone here has experience starting in graphic design, please share the tools you recommend and any tips that helped you improve your design skills as a beginner.