The first non-fiction book to explore the joys and complexities of adult sibling relationships'Truly enlightening, charming and moving. I've learned so much...but I'm still angry with my sister for reading my diary!' Jane Garvey'It is our least discussed and most formative relationship and Catherine's work is a hilarious, moving and fascinating guide through it.' Chris and Xand van Tulleken'Whether you're a sibling or an only child, Catherine Carr's book will leave you wiser and feeling more at home in the world.' Oliver Burkeman'Eye-opening and true. I wouldn't be who I am today if it weren't for my brother.' Gok WanFor most of us, our sibling relationships are the longest we will ever have. Whether loving or fraught, competitive or codependent, these bonds shape us in lasting ways.In this heartfelt, judgment-free book, Catherine Carr invites us to look at our brothers and sisters beyond the labels assigned in childhood. Combining real-life stories with expert insight, she explores birth-order stereotypes, favouritism, trauma, blended families, only children, siblings with additional needs, and the pain of estrangement and bereavement.Thinking about these relationships more deeply may help us better understand ourselves and the world around us.*Interwoven with candid interviews with sibling pairs taken from her hit podcast, Relatively, such as Chris and Xand van Tulleken, Johnny and Lillie Flynn, Nick and Gill Hornby, Manni and Reuben Coe, and more*