A field as broad as chemistry is cross-disciplinary by nature. Chemistry researchers, in their work or study, may encounter issues in materials science, biochemistry, chemical engineering, or a wide range of other disciplines. In addition to the major areas of organic and inorganic chemistry, Elsevier content covers advanced topics such as quantum chemistry, analytical chemistry, physical and theoretical chemistry, energy generation and storage, nano-chemistry, surface and interface chemistry, and environmental chemistry. This content is available over a spectrum of formats that includes journals, books, eBooks, undergraduate textbooks, multi-volume reference works, and innovative databases and online products like Reaxys.