portion of the book sets the tone by discussing the fundamental aspects of being an engineer in a boiler room environment. It presents a soliloquy that reflects the thought process of an engineer as he contemplates essential knowledge related to coal quality, boiler pressure, safe practices, and fuel efficiency, among other important operational tasks. Hawkins underscores the necessity of understanding various materials and their properties, suggesting that practical knowledge is key to mastering the complexities of steam engineering. The preface introduces the reader to the natural progression of knowledge sharing amongst engineers across generations and establishes the authority of the author, aiming to benefit both novice and experienced professionals in the field. (This is an automatically generated summary.)