Compilers are notoriously difficult programs to teach and understand, but this innovative textbook provides an incremental approach that allows students to write every single line of code themselves. Jeremy Sick guides the reader in constructing their own compiler in the powerful object-oriented programming language Python, adding complex language features as the book progresses. Deconstructs the challenge of compiler construction into bite-sized pieces, Explains the essential concepts, algorithms, and data structures that underlie modern compilers, Enhances learning by connecting language features to compiler design choices, Develops understanding of how programs are mapped onto computer hardware, Learn-by-doing approach suitable for students and professionals