Part I 1. An Introduction to Siblings in Therapy and Developing an Inclusive Mindset 2. The Role of Play Therapy in Promoting Sibling Attachment and Strengthening Relationships Part II 3. Supporting First-borns’ Adjustment to the Birth of Siblings in Play Therapy 4. When Siblings Are Adopted or Brought into Foster or Kinship With or Without Sibling Consent 5. Navigating the Impact of Ableism on Sibling Dynamics in Families Affected by Disability 6. Siblings with Diverse Intellectual and Academic Functioning 7. Neurodivergent Children and their Relationship to Siblings: Family Strengths and Vulnerabilities 8. Siblings with Diverse Racial Backgrounds and the Effects of Racial Trauma in Families 9. Sibling Abuse and Psychological Maltreatment: Relational-Cultural Play Therapy as an Intervention for the Victimized Sibling 10. Sexual Behavior Problems Between Siblings: A Family-Based Response 11. When Siblings Die by Suicide 12. Immigrant Children Affected by Family Separation: Growing Up Apart from Their Parents and/or Siblings 13. Working with Siblings of Transgender Youth in the Playroom