This book is a follow up to Lessons of Spanish Substantive Criminal Law. General Part I. Scope of Application of the Spanish Substantive Criminal Law (2017). Its main purpose is to fill an existing gap by providing Spanish students with an updated comprehensive overview of typicity as a category of the legal theory of crime. Therefore, a number of key issues are addressed in considerable depth, such as the criminal behaviour as action or omission, action/omission as a typical behaviour and the agents thereof , the kinds of typical structures, the objective type of result crimes (factual causation, legal causation?), the subjective type of intentional crimes, negligent offences, omission offences, the stages of fulfilment of the crime, and principals and accessories to the crime. Notwithstanding this, given that it has been conceived as a course-book, footnotes have not been used in order to render the text easier to read. Every lesson is closed by a self-assessment multiple choice quiz section and an appendix containing the right answers has been included, so that students themselves can test the level of knowledge acquisition they have reached. Moreover, this book aims to be a useful tool for Spanish scholars and legal practitioners in order to improve their ability to use English in both academic and professional contexts and to increase their knowledge of this language in the field of criminal law. Another purpose of this work is to provide foreign scholars and law professionals with a starting point for researching Spanish substantive criminal law.