You can read and download these books for free:

• If Your Child Stutters: A Guide for Parents [1]
• The Teacher Who Made a Difference [2] by Corinne M. Litzenberg
• Advice to Those Who Stutter [3] by 28 therapists who stutter themselves.
• Trouble at Recess [4] by Jamie   Spanish [5] version
  
• Sometimes I Just Stutter [6] by Eelco de Geus
• Self-Therapy for the Stutterer [7] by Malcolm Fraser
• The Child Who Stutters: To the Pediatrician [8] by Barry Guitar, Ph.D., and Edward G. Conture, Ph.D.
• Stuttering: Straight Talk for Teachers [9]
• Stuttering: Its Nature and Management [10] by Courtney Stromsta, Ph.D.
• My Very Own: I can Do It Storybook! Starring Me [11] by Julie Raynor
• The Girl Who Stutters [12] by Mia J., Rebecca D., and Casey W.
• Pages 77-81 from Stuttering: Successes and Failures [13] by Joseph Sheehan
• The Stuttering Little Ballet Boy [14] by Sohel Bagai

Also see Translations [15]