This Uigwe, which comprehensively documents the construction of Hwaseong Fortress in Suwon, has special significance, as it was printed with the original jeongnija type made in 1795. The construction process is documented in meticulous detail in these fascinating records, which include blueprints, the project budget, and an illustrated description of every facility and piece of equipment related to the fortress. Furthermore, all of the workers involved with the construction are listed by name, home region, work site, work date, salary, and occupation, showing that masons, carpenters, and plasterers were recruited from around the country.