Here, we present the first illustrated field guide to all woody plants from the Amazon. The work is divided over nine volumes. This volume (I) focuses on the fruits of woody plants known from the Guayanan Shield. It offers 208 plates with line drawings and aquarelle paintings of 2,000 species of fruit. Volumes II - IX describe and depict botanical and ecological field characters of all woody plants known from the Amazon. They cover 109 families, 1,000 genera and ±5,000 species, each volume treating families in alphabetical order. This 'Flora Amazonica' is the result of my lifetime research on plant-animal relations in the Amazon. It is built upon 3 earlier works: 'Het Surinaams Vruchtenboek' (1977); 'Fruits of the Guianan Flora' (1985); and 'Wild Fruits from the Amazon' (2014-18). From 1986 on, I have worked on my magnum opus, along with other Amazon biodiversity and conservation projects. I now thank all botanists and field explorers, past and present, that collected and named the myriad of plants I had to examine in order to compile it.