N. J. A. Sloane and Aaron D. Wyner have been in the Mathematical Science Research Center at Bell Laboratories, Murray Hill, New Jersey 07974, for a total of 52 years. They have written a total of 2?8 papers and books on information theory and related topics. They have both served as Editors-in-Chief of the IEEE Transactions on Information Theory.

• Introduction. Biography of Claude Elwood Shannon.Profile of Claude Shannon — Interview by Anthony Liversidge.Bibliography of Claude Elwood Shannon.Part A: COMMUNICATION THEORY, INFORMATION THEORY, CRYPTOGRAPHY.Preface to Part A.PapersA Mathematical Theory of Communication.Communication Theory of Secrecy Systems.Analogue of the Vernam System for Continuous Time Series.The Best Detection of Pulses.(With B.M. Oliver and J.R. Pierce) The Philosophy of PCM.Communication in the Presence of Noise.Communication Theory — Exposition of Fundamentals.General Treatment of the Problem of Coding.The Lattice Theory of Information.Discussion of Preceding Three Papers.Recent Developments in Communication Theory.Prediction and Entropy of Printed English.Efficient Coding of a Binary Source With One Very Infrequent Symbol.Information Theory.The Zero Error Capacity of a Noisy Channel.Certain Results in Coding Theory for Noisy Channels.Some Geometrical Results in Channel Capacity.A Note on a Partial Ordering for Communication Channels.Channels With Side Information at the Transmitter.Probability of Error for Optimal Codes in a Gaussian Channel.Coding Theorems for a Discrete Source With a Fidelity Criterion.Two-Way Communication Channels.(With R.G. Gallager and E.R. Berlekamp) Lower Bounds to Error Probability for Coding on Discrete Memoryless Channels I.(With R.G. Gallager and E.R. Berlekamp) Lower Bounds to Error Probability for Coding on Discrete Memoryless Channels II.Letter to Vannevar Bush.(With B.M. Oliver) Circuits for a P.C.M. Transmitter and Receiver.Some Topics on Information Theory.Concavity of Transmission Rate as a Function of Input Probabilities.The Rate of Approach to Ideal Coding.The Bandwagon.Notes to Part A.Part B: COMPUTERS, CIRCUITS, GAMES.Preface to Part B.PapersA Symbolic Analysis of Relay and Switching Circuits.Mathematical Theory of the Differential Analyzer.The Theory and Design of Linear Differential Equation Machines.(With John Riordan) The Number of Two-Terminal Switching Series-Parallel Networks.Network Rings.A Theorem on Coloring the Lines of a Network.The Synthesis of Two-Terminal Switching Circuits.(With H.W. Bode) A Simplified Derivation of Linear Least Square Smoothing and Prediction Theory.Programming a Computer for Playing Chess.A Chess-Playing Machine.Memory Requirements in a Telephone Exchange.A Symmetrical Notation for Numbers.A Method of Power or Signal Transmission to a Moving Vehicle.Presentation of a Maze Solving Machine.A Mind-Reading (?) Machine.The Potentialities of Computers.Throbac I.(With E. F. Moore) Machine Aid for Switching Circuit Design.Computers and Automata.Realization of all 16 Switching Functions of Two Variables Requires 18 Contacts.(With D.W. Hagelbarger) A Relay Laboratory Outfit for Colleges.(Edited Jointly with John McCarthy) Automata Studies (Preface, etc.).A Universal Turing Machine With Two Internal States.(With Karel de Leeuw, Edward F. Moore and N. Shapiro) Computability by Probabilistic Machines.Some Results on Ideal Rectifier Circuits.The Simultaneous Synthesis of S Switching Functions of N Variables.(With D. W. Hagelbarger) Concavity of Resistance Functions.Game Playing Machines.(With Peter Elias and Amiel Feinstein) A Note on the Maximum Flow Through a Network.(With Edward F. Moore) Reliable Circuits Using Less Reliable Relays I.(With Edward F. Moore) Reliable Circuits Using Less Reliable Relays II.Von Neumann's Contributions to Automata Theory.Computers and Automation—Progress and Promise in the Twentieth Century.Claude Shannon's No-Drop Juggling Diorama.Scientific Aspects of Juggling.Abstracts, Etc.The Use of the Lakatos-Hickman Relay in a Subscriber Sender.A Study of the Deflection Mechanism and Some Results on Rate Finders.Backlash in Overdamped Systems.Some Experimental Results on the Deflection Mechanism.(With C.L. Dolph) The Transient Behavior of a Large Number of Four-Terminal Unilateral Linear Networks Connected in Tandem.Review of Transformations on Lattices and Structures of Logic by Stephen A. Kiss.Review of Cybernetics, or Control and Communication in the Animal and the Machine by Norbert Wiener.Review of Description of a Relay Calculator, by the staff of the [Harvard] Computation Laboratory.(With E.F. Moore) The Relay Circuit Analyzer.(With E.F. Moore) The Relay Circuit Synthesizer.Notes to Part B.PART C: GENETICS.Preface to Part C.Doctoral DissertationAn Algebra for Theoretical Genetics.Notes to Part C.Permissions.

N. J. A. Sloane and Aaron D. Wyner have been in the Mathematical Science Research Center at Bell Laboratories, Murray Hill, New Jersey 07974, for a total of 52 years. They have written a total of 2?8 papers and books on information theory and related topics. They have both served as Editors-in-Chief of the IEEE Transactions on Information Theory.

• Introduction. Biography of Claude Elwood Shannon.Profile of Claude Shannon — Interview by Anthony Liversidge.Bibliography of Claude Elwood Shannon.Part A: COMMUNICATION THEORY, INFORMATION THEORY, CRYPTOGRAPHY.Preface to Part A.PapersA Mathematical Theory of Communication.Communication Theory of Secrecy Systems.Analogue of the Vernam System for Continuous Time Series.The Best Detection of Pulses.(With B.M. Oliver and J.R. Pierce) The Philosophy of PCM.Communication in the Presence of Noise.Communication Theory — Exposition of Fundamentals.General Treatment of the Problem of Coding.The Lattice Theory of Information.Discussion of Preceding Three Papers.Recent Developments in Communication Theory.Prediction and Entropy of Printed English.Efficient Coding of a Binary Source With One Very Infrequent Symbol.Information Theory.The Zero Error Capacity of a Noisy Channel.Certain Results in Coding Theory for Noisy Channels.Some Geometrical Results in Channel Capacity.A Note on a Partial Ordering for Communication Channels.Channels With Side Information at the Transmitter.Probability of Error for Optimal Codes in a Gaussian Channel.Coding Theorems for a Discrete Source With a Fidelity Criterion.Two-Way Communication Channels.(With R.G. Gallager and E.R. Berlekamp) Lower Bounds to Error Probability for Coding on Discrete Memoryless Channels I.(With R.G. Gallager and E.R. Berlekamp) Lower Bounds to Error Probability for Coding on Discrete Memoryless Channels II.Letter to Vannevar Bush.(With B.M. Oliver) Circuits for a P.C.M. Transmitter and Receiver.Some Topics on Information Theory.Concavity of Transmission Rate as a Function of Input Probabilities.The Rate of Approach to Ideal Coding.The Bandwagon.Notes to Part A.Part B: COMPUTERS, CIRCUITS, GAMES.Preface to Part B.PapersA Symbolic Analysis of Relay and Switching Circuits.Mathematical Theory of the Differential Analyzer.The Theory and Design of Linear Differential Equation Machines.(With John Riordan) The Number of Two-Terminal Switching Series-Parallel Networks.Network Rings.A Theorem on Coloring the Lines of a Network.The Synthesis of Two-Terminal Switching Circuits.(With H.W. Bode) A Simplified Derivation of Linear Least Square Smoothing and Prediction Theory.Programming a Computer for Playing Chess.A Chess-Playing Machine.Memory Requirements in a Telephone Exchange.A Symmetrical Notation for Numbers.A Method of Power or Signal Transmission to a Moving Vehicle.Presentation of a Maze Solving Machine.A Mind-Reading (?) Machine.The Potentialities of Computers.Throbac I.(With E. F. Moore) Machine Aid for Switching Circuit Design.Computers and Automata.Realization of all 16 Switching Functions of Two Variables Requires 18 Contacts.(With D.W. Hagelbarger) A Relay Laboratory Outfit for Colleges.(Edited Jointly with John McCarthy) Automata Studies (Preface, etc.).A Universal Turing Machine With Two Internal States.(With Karel de Leeuw, Edward F. Moore and N. Shapiro) Computability by Probabilistic Machines.Some Results on Ideal Rectifier Circuits.The Simultaneous Synthesis of S Switching Functions of N Variables.(With D. W. Hagelbarger) Concavity of Resistance Functions.Game Playing Machines.(With Peter Elias and Amiel Feinstein) A Note on the Maximum Flow Through a Network.(With Edward F. Moore) Reliable Circuits Using Less Reliable Relays I.(With Edward F. Moore) Reliable Circuits Using Less Reliable Relays II.Von Neumann's Contributions to Automata Theory.Computers and Automation—Progress and Promise in the Twentieth Century.Claude Shannon's No-Drop Juggling Diorama.Scientific Aspects of Juggling.Abstracts, Etc.The Use of the Lakatos-Hickman Relay in a Subscriber Sender.A Study of the Deflection Mechanism and Some Results on Rate Finders.Backlash in Overdamped Systems.Some Experimental Results on the Deflection Mechanism.(With C.L. Dolph) The Transient Behavior of a Large Number of Four-Terminal Unilateral Linear Networks Connected in Tandem.Review of Transformations on Lattices and Structures of Logic by Stephen A. Kiss.Review of Cybernetics, or Control and Communication in the Animal and the Machine by Norbert Wiener.Review of Description of a Relay Calculator, by the staff of the [Harvard] Computation Laboratory.(With E.F. Moore) The Relay Circuit Analyzer.(With E.F. Moore) The Relay Circuit Synthesizer.Notes to Part B.PART C: GENETICS.Preface to Part C.Doctoral DissertationAn Algebra for Theoretical Genetics.Notes to Part C.Permissions.