This paper is a survey of anabelian aspects of the tempered fundamental group of nonarchimedean analytic spaces. This tempered fundamental group ifies analytic étale coverings that become topological coverings for Berkovich topology after pullback by some finite étale covering. This article will focus on two aspects : a nonarchimedean analog of Grothendieck-Teichmüller theory and a geometric interpretation of compact subgroups of the tempered fundamental group and of a prime-to-$p$ version of the tempered fundamental group.