Warren J. Hehre is the author of AB INITIO Molecular Orbital Theory, published by Wiley. Leo Radom, born on December 13, 1944 in Shanghai, China, is a computational chemist. He attended North Sydney Boys High School. He has a PhD and a DSc from the University of Sydney and carried out post-doctoral work under the late Sir John Pople.

• Theoretical Background. The Computational Problem. Selection of A Model. Practical Considerations: Input and Output. The Performance of the Model. Index.