Organic electronic and magnetic materials are being incorporated into electronic devices as alternatives to purely inorganic systems. Most of the physical properties of these materials, such as the ability to conduct electrons, can be custom tailored via the modification of the chemical repeat unit or the addition of one or more functional groups. This has led to an expanding library of materials, phenomena, and innovative devices. In addition, organic-based devices offer mechanical flexibility, lightweight design, and low-cost fabrication, all versatile characteristics uncommon in their inorganic counterparts. The science of the interaction of inorganic materials with organic electronic and magnetic materials is a growing field in its own right, and of particular importance to designing and optimizing electronic devices.