As the cost of university textbooks continue to rise, students are increasingly hesitant to purchase required course materials. Affordability and accessibility have become undeniable barriers that have a negative impact on the academic performance of students, in particular, those from low-income families. The economic downturn during the COVID-19 pandemics further exacerbates the situation, challenging institutions to continue working on innovative approaches to affordable and equitable higher education. To address the issue of textbook affordability, many universities in the US and Canada are developing incentive programs that support faculty to develop and adopt open educational resources (OER). This paper documents the author’s journey of writing and publishing an open textbook, Introduction to Engineering Thermodynamics. It addresses the essential elements of open authoring and shares the author’s practical experience. The open textbook has been adopted by an engineering class as a supplementary text, and the survey results indicate positive feedback from students.
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