What is Map Tree & Link juice in SEO?

Hi Friends !! What is Map Tree & Link juice in SEO? Please suggest detailed about Map Tree importance in SEO.

Link juice is a colloquial term in the SEO world that refers to the power or equity passed to a site via links from external or internal sources. This power is interpreted as a vote of recommendation toward your site and is one of the most important factors in determining your site's search ranking.

Tree map is a good Google Analytic feature. It will helps you to improve your site performance.