Useful insects, gardening practices, natural developments, insect hotels... Promoting biodiversity in your garden allows several living species, both fauna and flora, to coexist in the same space and contribute to an ecological, natural and healthy balance. This is the guarantee of a healthy garden and pesticide-free production. To achieve this, it is necessary to create or preserve places where insects and animals can live, thus ensuring essential missions such as pollination, soil renewal or pest control. This book offers portraits of useful insects and advice on how to attract them and provide them with shelter, as well as gardening practices that respect this ecosystem and natural developments.