## Oriented matroids today

### Summary

Summary: This dynamic survey offers an "entry point" for current research in oriented matroids. For this, it provides updates on the 1993 monograph "Oriented Matroids" by Bj$\ddot$orner, Las Vergnas, Sturmfels, White & Ziegler [85], in three parts: 1. a sketch of a few "Frontiers of Research" in oriented matroid theory, 2. an update of corrections, comments and progress as compared to [85], and 3. an extensive, complete and up-to-date bibliography of oriented matroids, comprising and extending the bibliography of [85].

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