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Dust and magnetic fields are ubiquitous in the universe. Interstellar dust is the seeds of star and planet formation, while magnetic fields play an important role in many astrophysical phenomena, including star formation, cosmic ray transport, and synchrotron emission. The alignment of non-spherical dust grains with magnetic fields, resulting in dust polarization, provides a powerful tool to map magnetic fields. Dust polarization has been successfully used to trace magnetic fields in various scales, from ~ kpc to ~ 1000 AU scales. Recent polarization observations at mm-cm wavelengths from disks (~ 100 AU scales) by ALMA reveal that dust polarization may not trace magnetic fields, but grain growth and planetesimal formation. At the same time, polarized dust emission is considered the most critical challenge for understanding how the universe was born through so-called B-modes polarization. Therefore, accurate modeling of dust foreground polarization, which depends on dust astrophysics, gas density, and magnetic field structure, is required for the B-modes detection. The aim of this workshop is to bring together local and international experts in dust astrophysics and magnetic fields.