In addition to original material this book is an adaptation of Introduction to Speech Communication authored by Sarah E. Hollingsworth, Kathryn Weinland, Sasha Hanrahan, and Mary Walker with a CC BY-NC-SA license. Introduction to Speech Communication includes original work as well as adapted and remixed material from Exploring Public Speaking: 4th Edition licensed CC BY-NC-SA, Stand Up, Speak Out licensed CC BY-NC-SA, and Fundamentals of Public Speaking licensed CC BY. It's About Them: Public Speaking in the 21st Century also adapted a chapter from Speak Out, Call In: Public Speaking as Advocacy authored by Meggie Mapes that is licensed CC BY-NC-SA. The information on "What is an Open Textbook?" is adapted from Introduction to Philosophy: Epistemology by Christina Hendricks with a CC-BY license. See the Adaptations section for specific changes. This textbook was created as part of the Interactive OER for Dual Enrollment project, facilitated by LOUIS: The Louisiana Library Network and funded by a $2 million Open Textbooks Pilot Program grant from the Department of Education. This project supports the extension of access to high-quality post-secondary opportunities to high school students across Louisiana and beyond. This project features a collaboration between educational systems in Louisiana, the library community, Pressbooks technology partner, and workforce representatives. It will enable and enhance the delivery of open educational resources (OER) and interactive quiz and assessment elements for priority dual enrollment courses in Louisiana and nationally. Developed OER course materials will be released under a license that permits their free use, reuse, modification and sharing with others.The target audience for this project and this textbook are dual enrollment students. Dual enrollment is the opportunity for a student to be enrolled in high school and college at the same time. A dual enrollment student receives credit on both their high school and college transcripts for the same course