Actress Evanna Lynch, best known for playing Luna Lovegood in the Harry Potter films, has signed a deal to write a memoir exploring eating disorders and “the battle between perfection and creativity”.

Lynch, who battled anorexia as a child, uses the book “to delve into the very heart of a woman’s relationship with her own body”, according to the publisher.

The book’s synopsis reads: “Unwilling to let the darkness of her eating disorder eclipse her dreams, but afraid to fully release the certainty and safety of self-destruction, Evanna explores the pivotal moments and choices in her life that led her down the path of creativity and dreaming and away from the empty pursuit of perfection, and reaches towards acceptance of the wild, sensual and unpredictable reality of womanhood.

“This is a story of the tragedy and the glory of growing up, of mourning girlhood and stepping into the unknown, and how that act of courage is the most creatively liberating thing a woman can do.”

Lynch said: “For years I’ve been trying in vain to compress a complicated, painful, rich journey into soundbites and interviews and I’ve let the media trivialise and sensationalise a condition that is nuanced, delicate and intensely personal for too long. I know that I have wisdom and interesting stories to tell from the years of therapy, the scores of fascinating creative women I’ve learned from, and from the experiences and feelings held within my own heart and I couldn’t be more thrilled to have the opportunity to put them in a book.

“I feel incredibly lucky to have a team who are supporting me to write a completely honest account of my journey, and to ruthlessly explore the voices of self-hate, destruction and eating disorders in as much depth as those of self-love, creativity and dreams.”

The untitled book will be published in September.