Cancer is a group of diseases driven by inherently nanostructural problems (e.g. DNA issues). As such, there are obvious benefits to treatments employing nanoscale structures and processes. Additionally, as nanotechnologies are developing at a rapid rate, it is likely that many new themes will develop within the area in the next few years. With this in mind, Cancer Nanotechnology aims to provide a forum so that the most promising emerging themes should be pre-eminent in the minds of researchers working in one—or, indeed, both—of the disciplines of cancer research or nanotechnology.