The book "Advances in Extended and Multifield Theories for Continua" offers a comprehensive analysis of modern computational techniques, particularly the finite element method, and their application in science and technology. It highlights the necessity of going beyond traditional Cauchy-Boltzmann continuum theories to account for material properties arising from microstructural phenomena. Inhomogeneous loading and deformation states require a deeper understanding of lower scales, as these effects can influence the macroscopic material response. The book argues that standard continuum mechanics must be expanded to capture these complex phenomena and make this information accessible for macroscopic numerical simulations. It is aimed at professionals and students engaged with the latest developments in continuum theory and its practical applications.