You can read and download these books for free:

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

Also see Translations [14]