"Fors Clavigera (Volume 4 of 8)" by John Ruskin is a series of letters published during the 1870s. Addressed to British workmen and laborers, these pamphlets explore Ruskin's vision of moral value in sincere labor and social reform. Drawing inspiration from his mentor Thomas Carlyle, Ruskin tackles various topics aimed at influencing social change. The series famously includes his controversial attack on James McNeill Whistler's paintings, which led to a libel case that temporarily ended Ruskin's art criticism career. (This is an automatically generated summary.)
These books are free to read. Each is in the public domain in the United States; check your own country's rules before you copy or share one.