SEMrush academy is an online place where you can enrich yourself with SEO skills and sharpen your knowledge about Digital Marketing and LInkbuilding. There are many courses available at SEMrush academy that are 100% free and tend to educate you about the tool, abbreviations used in the tool, and some basic SEO & Digital Marketing skills. The courses are designed by experts. They impart some fundamental knowledge that may be required if you are a complete beginner.