We are entering into the next great world technological revolution. The metaverse is a virtual world that replicates reality, seeking to expand social connections. In the very near future, the boundaries between the physical and the virtual will slowly dissolve. In the metaverse, we will be able to go to work, attend concerts, meet friends, study and do practically everything else we currently do in the physical world. This book explores concepts, reflections, examples of use, platforms, applications, devices, new marketing techniques, pedagogical activities and many other contents related to this new virtual world, seeking to introduce education professionals to a subject that, despite still being so controversial, is extremely important for our understanding of the future.