What specific set of books allowed for the spread of enlightenment ideas?

The Encyclopedia, edited by Denis Diderot and Jean le Rond d'Alembert, played a significant role in the spread of Enlightenment ideas. It aimed to compile and present knowledge about various subjects in a more accessible and systematic way, promoting critical thinking and intellectual freedom. Other influential works included Jean-Jacques Rousseau's "The Social Contract" and Voltaire's philosophical writings.