The Elements of Perspective arranged for the use of schools and intended to be read in connection with the first three books of Euclid

"The Elements of Perspective" by John Ruskin is an educational book about perspective drawing that uses math to teach art. The book probably came out around the 1800s. It's a guide for students learning to draw, explaining the rules of perspective, and it teaches these rules alongside geometry. The author tries to make perspective easy to understand without losing the math behind it. The book starts by showing how perspective works in the real world, explaining why keeping your viewpoint steady matters when drawing, and how far away things look different. This helps students get ready for the math problems and drawing exercises in the book.