Relationships are built on unspoken rules. Tone of voice. Facial expression. Timing. Subtle shifts in emotion. Expectations that are rarely explained—but often assumed. For many autistic individuals—and for the people who love and support them—these invisible rules can lead to confusion, hurt feelings, and repeated misunderstandings. Conversations stall. Conflict escalates. Both people may feel unseen or misinterpreted. Understanding Communication and Relationships in Autism offers a clear and practical roadmap for navigating these moments. Written by neuropsychologist Theresa M. Regan, PhD, CAS, this book explains how social connection actually works—and why it can feel so complex. Drawing from more than 30 years of clinical experience and over 1,000 autism evaluations in adolescents and adults, Dr. Regan translates research into real-life application. Inside, you will learn how to: • Recognize the difference between task-focused and relationship-focused communication • Strengthen conversational skills without sacrificing authenticity • Navigate compliments, gratitude, and emotional reciprocity • Approach conflict without falling into “all good” or “all bad” thinking • Repair misunderstandings and rebuild trust This book does not promote masking or changing who you are. Instead, it increases clarity—about your own communication style, about the expectations of others, and about how neurological differences influence interaction. Whether you are an autistic adult seeking insight, a spouse or partner wanting to strengthen connection, a parent supporting growth, or a clinician working with neurodiverse clients, this book provides structured guidance grounded in compassion. Part of The Understanding Autism Series , this volume builds on foundational knowledge of diagnosis and behavior to focus specifically on communication and relationship dynamics across the lifespan. When understanding increases, relationships become less fragile—and more resilient.