Learn Eiffel. From their own explanation: https://www.eiffel.org/doc/eiffel/Learning_Eiffel https://www.eiffel.org/doc/eiffel/Learning_Eiffel > Remember that E

Learn Eiffel. From their own explanation: https://www.eiffel.org/doc/eiffel/Learning_Eiffel https://www.eiffel.org/doc/eiffel/Learning_Eiffel > Remember that Eiffel, unlike other programming languages, is not just a programming language. Instead, it is a full life-cycle framework for software development. As a consequence, learning Eiffel implies learning the Eiffel Method and the Eiffel programming Language. Additionally, the Eiffel development environment EiffelStudio is specifically designed to support the method and language. So having an understanding of the method and language helps you to appreciate the capabilities and behavior of EiffelStudio. I read "Object-Oriented Software Construction" to do so, but it was long enough ago that I googled "The Eiffel Programming Language" because my brain had substituted that title instead because IMHO, it's more accurate. The above link should have many current resources for you.