The book "Epoxidations and Hydroperoxidations of β-Unsaturated Ketones" by Corinna Reisinger offers a comprehensive investigation into the organocatalytic asymmetric epoxidation of cyclic and acyclic β-unsaturated ketones. In this dissertation, the author documents her novel methodology, which employs primary ammonium salts as catalysts and hydrogen peroxide as a cost-effective and environmentally friendly oxidizing agent. Reisinger describes the groundbreaking catalytic asymmetric hydroperoxidation of β-enones, which produces optically active five-membered cyclic peroxyhemiketals in a single step. This work highlights the versatility and synthetic value of cyclic peroxyhemiketals by demonstrating their transformation into highly enantioenriched acyclic and cyclic aldol products that are currently inaccessible through other synthetic methods. Furthermore, cyclic peroxyhemiketals are precursors to optically active 1,2-dioxolanes, which are biologically relevant. This dissertation represents a significant advancement in the field of asymmetric epoxidation chemistry and presents the most efficient method known to date for generating highly enantioselective cyclic epoxyketones.