**Preface to "Data Science and Knowledge Discovery"**

This book shows a set of emerging topics in Data Science and Knowledge Discovery. This book also presents works using different datasets like Covid-19, e-commerce, text, driving or spatial. This book is essential for anyone (students, professors, researchers, decision-makers) who want to know more about this area, see new findings, and see how to use data science to support the decision process. It can be helpful to open new windows of knowledge or research opportunities in an even more significant area.

> **Filipe Portela** *Editor*
