The book titled ""The Life Of Sir William Petty, 1623-1687: Chiefly Derived From Private Documents"" is a biography of Sir William Petty, written by Fitzmaurice, Edmond. Sir William Petty was a 17th-century English economist, scientist, and philosopher who made significant contributions to the fields of economics, statistics, and demography. This book is a comprehensive account of his life, primarily based on private documents, which sheds light on his personal and professional life. The author provides a detailed description of Petty's childhood, education, and early career. He also discusses Petty's association with the Royal Society and his contributions to the development of statistical analysis and demography. The book also covers Petty's involvement in politics, including his role in the English Civil War and his appointment as a member of the Irish Parliament. The author delves into Petty's economic theories, including his ideas on taxation and the role of the state in the economy. Overall, ""The Life Of Sir William Petty, 1623-1687: Chiefly Derived From Private Documents"" is a fascinating account of one of the most influential thinkers of the 17th century. The author's use of private documents provides a unique insight into Petty's life and work, making this book an essential read for anyone interested in the history of economics, science, and philosophy.This scarce antiquarian book is a facsimile reprint of the old original and may contain some imperfections such as library marks and notations. Because we believe this work is culturally important, we have made it available as part of our commitment for protecting, preserving, and promoting the world's literature in affordable, high quality, modern editions, that are true to their original work.