Dr Maria-Elena Lukeides is a doctorate-trained Clinical Psychologist with more than twenty-eight years of experience helping people navigate anxiety, trauma, depression, OCD, relationship difficulties and the many challenges that shape the human experience. Throughout her career, she has worked across acute mental health, community mental health, rehabilitation services and private practice, supporting thousands of people in moving beyond suffering towards greater psychological freedom and wellbeing. Her work bridges contemporary psychological science with contemplative wisdom, integrating evidence-based therapies-including Acceptance and Commitment Therapy (ACT), Compassion Focused Therapy (CFT), Internal Family Systems (IFS), attachment theory and neuroscience-with mindfulness, meditation and embodied practice. She is also trained in psychedelic-assisted therapy and was among the first psychologists in Australia to be qualified to provide psilocybin- and MDMA-assisted psychotherapy following the landmark rescheduling of these treatments. Alongside her clinical work, Maria-Elena is a meditation and spiritual teacher, retreat facilitator, keynote speaker and clinical supervisor. She has guided hundreds of students through mindfulness and personal transformation programs, leads retreats, delivers workshops and speaks on the integration of psychology, mindfulness and human flourishing. Her work is grounded in the belief that science and spirituality are not opposing paths, but complementary ways of understanding what it means to heal and become fully human. For almost three decades, one question has remained at the centre of her work: Why do so many people continue to suffer, even after years of therapy, insight and self-development? No Parts Left Behind is her answer. Drawing together nearly three decades of clinical experience, thousands of therapeutic conversations and a lifetime of contemplative practice, the book offers a compassionate, evidence-informed framework for emotional healing. It proposes that lasting transformation begins not by changing our emotions, but by changing our relationship with the parts of ourselves that experience them.