Book excerpt: The COVID-19 pandemic has accelerated the implementation of digital transformation strategies, and there has been an exponential increase in the demand for intelligent and reliable communications solutions. The pandemic brings huge challenges for all economic agents, as resilience and the capacity to adapt to new risks and hindrances are now fundamental elements in our societies. In this context, it is essential that digitalization brings opportunities to transition to a smarter economy based on innovation, sustainability, and well-being. Digitalization as a Driver for Smart Economy in the Post-COVID-19 Era discusses digitalization, information and communication technologies, marketing, entrepreneurship, and innovation in an organizational context to optimize the practices established in the most diverse domains of knowledge, specifically attending to the relation between digitalization and sustainability in a post-pandemic era. It is ideal for academicians, instructors, researchers, industry professionals, business managers, private institutions, and students as it covers a range of key topics such as sustainability and smart economy.