Book excerpt: Acquire expertise on the layered software architecture, its internal groupings and evolution regarding the novel ECU architectures and different communication protocols, the structure of the different models, the methodology for developing systems, and a thorough exploration of the application layer and its intricate communication paradigm, through a set of theory, examples and exercises, all while leveraging the R23-11 version of Classic AUTOSAR®. As for myself, I am Micael Coutinho, an embedded Software engineer with experience in automotive projects. The challenges I have encountered and saw other engineers run into along the way made me realize the lack of an approachable way to learn the architecture was the main problem working with AUTOSAR®. As such, I have created a website for knowledge sharing in a more informal and friendly manner, leading me years later to the idea for this book. I hope this book provides a big push in you becoming more capable of working with AUTOSAR®, just as it made me a better Engineer.