This chapter focuses on planters manuals beyond Saint-Domingue published by Jean Samuel Guisan and Jean-Baptiste Poyen de Sainte-Marie. Writing respectively in the very different circumstances of an underdeveloped French Guiana and an economically mature Guadeloupe, both writers urged planters to adopt technological innovations, regiment their workforce, keep detailed records, and prioritize long-term profitability over short-term profits. Publishing in close proximity to the French and Haitian Revolutions (1788 and 1792, respectively), they also had to consider increased anti-slavery sentiment, even revolutionary ferment, in expressing their pro-slavery views. They responded by promoting the ideal of an “enlightened” planter, which is contrasted to the ideas of the marquis de Casaux, published in a 1781 treatise. Appropriating the language of sentiment, Guisan and Poyen folded “humanity” into plantation management, asserting that this would harmonize with the planter’s self-interest and increase his happiness by promoting that of the enslaved. Ultimately, though, they construed the planter’s mastery differently: for Poyen, a benevolent plantation monarch ruled over his subjects while Guisan’s planter was accountable to a wider social and political order devoted to collective good.