"Business Calculus" by Adam Glesser and Maijian Qian is a textbook published in 2019 for adult education and further education students in the business field. This textbook covers the subject area of mathematics with a focus on calculus, making it a valuable resource for individuals looking to enhance their understanding of mathematical concepts in a business context. The book is written in English and includes both print and online formats, providing flexibility for students to engage with the material in the way that best suits their learning style.