At the time of his death in 1993, Reiner Schà rmann was one of the worldâ s leading Heidegger scholars. On Heideggerâ s Being and Time is an outstanding exploration and elucidation of Heideggerâ s most important work by two major philosophers, providing a masterclass in reading a philosophical classic. It is also the first time that Schà rmannâ s renowned lectures on Heidegger have been published.