Globally Important Agricultural Heritage Systems (GIAHS) are agroecosystems inhabited by communities that live in an intricate relationship with their territory. These evolving sites are resilient systems characterized by remarkable agrobiodiversity, traditional knowledge, invaluable cultures and landscapes, sustainably managed by farmers, herders, fisherfolk, and forest people in ways that contribute to their livelihoods and food security. The following publication is a collection of success stories from different Globally Important Agricultural Heritage Systems (GIAHS) and aims so showcase the achievements made over the past 20 years since the establishment of the GIAHS programme of the Food and Agriculture Organisation of the UNited Nations (FAO). The publication will feature success stories from 1) Tanzania 2.) China 3.) Japan 4.) Italy 5.) Spain 5.) Peru and 6. Algeria to give an insight into the what has changed since the designation of these systems as a GIAHS.