This free-textbooks project represents a collective effort by the authors below to address the textbook-price problem faced by students, albeit in only one narrow area within only one discipline, but it's a start. Over the past 30 years, the authors published numerous highly successful textbooks with several publishers, and decided to combine their efforts behind this new project of making textbooks free for students. The initiative is sponsored by the Electrical and Computer Engineering department at the University of Michigan. More information, and links to download the titles, are available at https://fet.eecs.umich.edu/
Ann Arbor, MI @M_Publishing