In 'The Principles of Secularism', George Jacob Holyoake defines the meaning and principles of secularism and explains the laws of secular controversy. Through a series of chapters, he provides guidance on the organization and characteristics of secularism, including the importance of association and the role of the secular guild. Holyoake's work is a valuable resource for those interested in Freethought and provides direction for those seeking to understand and advocate for secularism.