The topics covered include: fundamental in vivo physical chemical studies of transcription factor binding; real-time single molecule in vivo imaging; state-of-the-art methods for discovery, characterization, and manipulation of histone- and nucleosome-modifying enzymes and for the synthesis and characterization of their specifically-modified histone and nucleosome substrates; single molecule biophysics studies of molecular mechanisms; atomic resolution structural studies; and locus- and chromosome-wide phenomena such as heterochromatin formation and dosage compensation.