 The technique of focused electron beam induced deposition, FEBIT, has been developed significantly over the past 20 years, allowing for the fabrication of nanostructures with high precision and control. FEBIT has become a powerful tool for researchers in many different fields, including material science, physics, and engineering. Recent applications include the fabrication of strain-sensitive and magnetic field-sensitive as well as the creation of complex nanoscale composites. This article was authored by Michael Huth, Fabrizio Perreti, Christian Schwalb, and others.