The most-tested, most-missed topic in organic chemistry in one place: assigning configuration, telling isomer relationships apart, the representations, chair conformations, and how every major reaction sets stereochemistry.
CIP priority rules with R/S and E/Z assignment
Enantiomers, diastereomers, meso compounds, optical activity, and enantiomeric excess
Wedge–dash, Fischer, Newman, sawhorse, and chair representations
Chair conformations with A-values, plus the stereochemistry of every major reaction