For over two decades, Samuel Birley Rowbotham, writing under the pseudonym 'Parallax,' traveled across Britain to present his distinctive flat earth theory. In Zetetic Astronomy: Earth Not a Globe, Rowbotham challenges conventional science and introduces the 'Zetetic' method, rejecting traditional scientific principles. This seminal work provides an exhaustive exploration of flat-earth arguments, making it an essential resource for anyone engaging in debates on the topic. Rowbotham's writings delve into the broader historical and literary context of flat-earth thought, offering profound insights into the persistence and appeal of alternative scientific theories. This book remains a critical reference for understanding the ongoing discourse surrounding the shape of our world.