Lectiones Optic?] & Geometric?], originally published in 1674, explores the genuine reasons behind optical phenomena and elucidates general symptoms of curved lines. Authored by Isaac Barrow, with contributions from Isaac Newton and John Collins, this historical text delves into the principles of optics and geometry, offering insights into the scientific understanding of the 17th century. The work investigates and expounds on the true causes of optical phenomena, further declaring the general characteristics of curved lines.