Chapter 4 addresses the right to information, the cornerstone of the system of control rights under the GDPR and the ePrivacy Directive. The types of information that are likely to provide data subjects the most relevant information about data processing in the context of the data-driven economy are analysed more thoroughly, e.g., the information about the legal basis for data processing, the information about the sources of data, and the details on automated decision-making. The chapter investigates the right to explanation and icons which seem to offer a new, promising option to exercise more control over modern data flows. In the ePrivacy area, the right to information plays an increasingly important role in regulating the use of cookies and similar tracking technologies. The chapter acknowledges that, despite some novel steps in the GDPR, entitlements that the law affords are undermined due to three groups of factors: psychological, technological, and economic.