Having access to natural, green spaces is vital to our physical and mental wellbeing. But, as urban development spreads, grey has become the new green. Nature deprivation is a fast-growing epidemic, harming the health and happiness of hundreds of millions of people worldwide. To combat this, Nature is a Human Right, founded by Ellen Miles in 2020, is working to make access to green space a recognized right for all, not a privilege. This book has taken root from the mission of the campaign, bringing together a collection of engaging essays, interviews and exercises, curated by Ellen, from a selection of its expert ambassadors and supporters.