“The Art of Segmented Woodturning” by Malcolm Tibbetts is a good first book. It covers Safety, Techniques, Glue, Tools, and Step By Step Instructions (with photos) as several projects.
“Segmented Wood Turning” by Bill Smith is a good starters book
“The Fundamentals of Segmented Woodturning: Projects, Techniques & Innovations for Today’s Woodturner” by Jim Rogers
“Segmented Turning: Design*Techniques*Projects” by Dennis Keeling
“Segmented Bowls for the Beginning Turner” by Don Jovag
“Woodturning with Ray Allen: A Master’s Designs & Techniques for Segemented Bowls and Vessels” by Dale Nish