2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/53648We review some attempts of reformulating both gauge theory and general relativity in terms of holonomy-dependent loop variables. The emphasis lies on exhibiting the underlying mathematical structures, which often are not given due attention in physical applications. An extensive list of references is included.56 pages, 10 figures (postscript, compressed and uuencoded), TeX, Penn State University CGPG-93/9-1High Energy Physics - TheoryGeneral Relativity and Quantum Cosmologytext