  Weakly Interacting Massive Particles (WIMPs) are among the best-motivated
dark matter candidates. In light of no conclusive detection signal yet despite
an extensive search program that combines, often in a complementary way,
direct, indirect, and collider probes, we find it timely to give a broad
overview of the WIMP paradigm. In particular, we review here the theoretical
foundations of the WIMP paradigm, discuss status and prospects of various
detection strategies, and explore future experimental challenges and
opportunities.
