For courses in precalculus, The Graphical Approach to Precalculus with Limits by John Hornsby unifies the theme of a function through a consistent four-part analytical process. The authors, John Hornsby, Lial, and Rockswold, guide students through:

1. [See] examining the nature of the graph,
2. solving a typical equation analytically and graphically,
3. solving the related inequality analytically and graphically,
4. applying analytic and graphical methods to solve an application.

This proven approach helps students gain a deep visual and graphical understanding of mathematics, fostering a stronger connection to the mathematical world around them. The 7th edition, published by Pearson on January 9, 2018, contains 1176 pages and is available with ISBN-13: 978-0134778693, ISBN-10: 134696492. The book measures 8.8 x 1.9 x 11.2 inches.