Many authors put their stutter books on [this website](https://www.freestutteringbooks.com/free-stuttering-books.html) for free, so that everyone can read them. I have read them all. I can recommend: 1. Mastering Stuttering (by Bob Bodenhamer) - the best one I've read 2. Stuttering foundations and clinical applications (2023 by Carol and Seery) 3. Stuttering and Cluttering: Frameworks for Understanding and Treatment (2017 by Ward) 4. Redefining stuttering (2011 by Harrison)