There is a unity to physics; it is a discipline which provides the most fundamental understanding of the dynamics of matter and energy. To understand anything about a physical system you have to interact with it and one of the best ways to learn something is to use electrons as probes. This book is the result of a meeting, which took place in Magdalene College Cambridge in December 2001. Atomic, nuclear, cluster, soHd state, chemical and even bio- physicists got together to consider scattering electrons to explore matter in all its forms. Theory and experiment were represented in about equal measure. It was meeting marked by the most lively of discussions and the free exchange of ideas. We all learnt a lot. The Editors are grateful to EPSRC through its Collaborative Computational Project program (CCP2), lOPP, the Division of Atomic, Molecular, Optical and Plasma Physics (DAMOPP) and the Atomic Molecular Interactions group (AMIG) of the Institute of Physics for financial support. The smooth running of the meeting was enormously facilitated by the efficiency and helpfulness of the staff of Magdalene College, for which we are extremely grateful. This meeting marked the end for one of us (CTW) of a ten-year period as a fellow of the College and he would like to take this opportunity to thank the fellows and staff for the privilege of working with them.

Atomic Confinement.- Correlation Studies of Two Active-Atomic-Electron Ionization Processes in Free Atoms.- Coherent Electron Impact Excitation of Atoms.- Electron and Photon Impact Studies of CF3I.- Time Delays and Cold Collisons.- Relativistic Basis Set Methods.- Inner Shell Electron Impact Ionization of Multi-Charged Ions.- A Study of Iterative Methods for Integro-Differential Equations of Electron-Atom Scattering.- Relaxation by Collisions with Hydrogen Atoms: Polarization of Spectral Lines.- Electron Energy Loss Spectroscopy of Trifluoromethyl Sulphur Pentafluoride.- The Use of the Magnetic Angle Changer in Electron Spectroscopy.- Mechanisms of Photo Double Ionization of Helium by 530 eV Photons.- Exchange Effects in the Outer Shell Ionisation of Xenon.- Ionization of Atoms by Antiproton Impact.- High resolution electron interaction studies with atoms, molecules, biomolecules and clusters.- Electron Driven Processes.- Quantum Time Entanglement of Electrons.- Analytic Continuation: Continuum Distorted Waves.- Electron Impact Ionization of Atoms with Two Active Target Electrons.- Electron Collisions with Aggregated Matter.- Rotational and Vibrational Excitation in Electron-Molecule Scattering.- Interactions Between Electrons and Highly Charged Iron Ions.- An Investigation of the Two Outermost Orbitals of Glyoxal and Biacetyl by Electron Momentum Spectroscopy.- Electron Scattering from Nuclei.- Electron Scattering and Hydronamic Effects in Ionized Gases.- Testing the Limits of the Single Particle Model in 16O(E,EP).- (?, 2E) and (E, 2E) Using a 2Electron $$\mathcal{R}$$ Operator Formalism.- Laboratory Synthesis of Astrophysical Molecules.