 The bookshelves were the work of the viceregal cabinetmakers who carved in ayacahuite pine, cedar, and "coloyote" wood.The size of the collection continually increased, and a third level of bookshelves was added in the mid-19th century.As part of the Spanish Enlightenment's cultural impact on New Spain, the crown established Academy of San Carlos in 1785 to train painters, sculptors, and architects in New Spain, under the direction of peninsular Spaniard .