Claudio Baraldi published several works in international books and journals on communication systems. His research concerns interaction systems related to facilitation of children's participation, interlinguistic and intercultural mediation, conflict management.
Giancarlo Corsi worked and published intensely on the theory of social systems, public opinion and communication media, education, career and social inclusion. His current research deals with the relationship between public sphere, mass media, and new communication technologies.
Elena Esposito published many works on the theory of social systems, media theory, memory theory, and sociology of financial markets. Her current research on algorithmic prediction is supported by a five-year Advanced Grant from the European Research Council. She is a member of the scientific advisory board of Bielefeld University Press.

Frontmatter 1
Contents 5
Preface to the English Edition 9
Foreword to the Italian Edition 13
Introduction 17
Ways to Read this Book 21
Art System (Kunstsystem) 27
Asymmetrization (Asymmetrisierung) 31
Attribution (Zurechnung) 35
Autopoiesis 37
Code 41
Communication (Kommunikation) 45
Complexity (Komplexität) 49
Conflict (Konflikt) 53
Constructivism (Konstruktivismus) 57
Differentiation (Differenzierung/Ausdifferenzierung) 61
Differentiation of Society (Differenzierung der Gesellschaft) 65
Dissemination Media (Verbreitungsmedien) 71
Double Contingency (Doppelte Kontingenz) 75
Economic System (Wirtschaftssystem) 79
Education System (Erziehungssystem) 83
Event (Ereignis) 87
Evolution 91
Expectations (Erwartungen) 95
Functional Analysis (Funktionale Analyse) 99
Identity/Difference (Identität/Differenz) 101
Inclusion/Exclusion (Inklusion/Exklusion) 105
Information 109
Interaction (Interaktion) 111
Interpenetration and Structural Coupling (Interpenetration und strukturelle Kopplung) 115
Language (Sprache) 121
Legal System (Rechtssystem) 125
Love (Liebe) 129
Mass media (Massenmedien) 133
Meaning (Sinn) 137
Meaning Dimensions (Sinndimensionen) 141
Medical System (Krankensystem) 145
Medium/Form 149
Morality (Moral) 151
Negation 155
Operation/Observation (Operation/Beobachtung) 157
Organization (Organisation) 163
Paradox (Paradoxie) 167
Political System (Politisches System) 171
Power (Macht) 175
Process (Prozess) 179
Program (Programm) 181
Property/Money (Eigentum/Geld) 185
Protest 187
Psychic Systems (Psychische Systeme) 189
Rationality (Rationalität) 191
Redundancy/Variety (Redundanz/Varietät) 193
Re-entry 195
Religious System (Religionssystem) 197
Risk/Danger (Risiko/Gefahr) 201
Scientific System (Wissenschaftssystem) 205
Self-description (Selbstbeschreibung) 209
Self-Reference (Selbstreferenz) 213
Semantics (Semantik) 217
Social System (Soziales System) 221
Society (Gesellschaft) 223
Sociological Enlightenment (Soziologische Aufklärung) 225
Structure (Struktur) 227
Symbolically Generalized Media (Symbolisch generalisierte Kommunikationsmedien) 229
System/Environment (System/Umwelt) 235
System of Families (System der Familien) 239
Time (Zeit) 243
Truth (Wahrheit) 247
Values (Werte) 251
World (Welt) 253
World Society (Weltgesellschaft) 255
List of Luhmann's works 259