A book of discovery of nature 100% games, fun, interactive (there is a lot to write and collect on this notebook), to use throughout the year, on holiday places or for a weekendend to the countryside, which allows you to learn everything about agriculture and its positive links with nature (practices preserving biodiversity, but also the contributions of biodiversity to agriculture), while having fun. All this in the form of labyrinths, riddles, coded words, arrow words, rebus, point by point, mystery words, charades… This playbook, the fourth in the series, was created and designed in partnership with the national network of Conservatoires d'espaces naturelles, animating the work of 15,000 naturalists and field animators.