The ten-volume set LNCS 12949 – 12958 constitutes the proceedings of the 21st International Conference on Computational Science and Its Applications, ICCSA 2021, which was held in Cagliari, Italy, during September 13 – 16, 2021. The event was organized in a hybrid mode due to the Covid-19 pandemic.

This book represents the first comprehensive edition, in English, on the soils of Brazil, in the challenge of illustrating all the biomes of a country of truly continental dimension. In addition to presenting the first geosystemic view of Brazilian soils, in all geological, geomorphological and environmental aspects, the book also makes a key contribution to the discussion of current topics in Pedology, such as Anthrosols, Technosols, Soil Management trends and sustainability, Pedometrics and advanced techniques of digital soil mapping. The soils of Brazil were conveniently stratified into sectors and treated within the different biomes, without neglecting any area of the Brazilian territory.

This book presents the proceedings of the 2nd International Congress on Innovation and Research—A Driving Force for Socio-Econo-Technological Development (CI3 2021). CI3 was held on September 1–3, 2021. It was organized by the Instituto Tecnológico Superior Rumiñahui and GDEON, in co-organization with Higher Institutes: Bolivariano de Tecnología, Central Técnico, Espíritu Santo, José Chiriboga Grijalva, ISMAC, Policía Nacional del Ecuador Vida Nueva; and sponsored by the Universidad Nacional Mayor de San Marcos (Peru), Universidade Federal de Goiás (Brazil) and City University of New York (United States). CI3 aims to disseminate the research project results that are being carried out in different Higher Education Institutions, research centers, and the business sector.