New, unopened “Calculus, Multivariable (3rd Edition)” by William L. Briggs & Lyle Cochran, published by Pearson Education in 2018. This textbook covers the subject area of Mathematics, specifically focusing on Multivariable Calculus. It is a trade paperback format with a total of 664 pages. The authors include William Briggs, Lyle Cochran, Eric Schulz, and Bernard Gillett. This textbook is designed for functional analysis, general calculus, and multivariable calculus, making it a comprehensive resource for students and professionals in the field.