  These lecture notes provide an overview of different aspects of de Sitter
space and their plausible holographic interpretations. We start with a general
description of the classical spacetime. We note the existence of a cosmological
horizon and its associated thermodynamic quantities, such as the
Gibbons-Hawking entropy. We discuss geodesics and shockwave solutions, that
might play a role in a holographic description of de Sitter. Finally, we
discuss different approaches to quantum theories of de Sitter space, with an
emphasis on recent developments in static patch holography.
