Raw loft spaces often showcase what can either be considered an eyesore or an integral charming detail of living within an industrial space: exposed electrical conduits and electrical boxes.
Instead of hiding these elements, architects Guilherme Fiorotto and Paula Russo of ytaº expanded the network of electrical inside their "Digital Library" into a wall-mounted lighting grid, embracing the raw details.
ytaº's "retro-nological" exposed electrical conduit lighting system isn't necessarily a project for DIY beginners, but the project is fairly affordable, requiring inexpensive electrical metallic tubing, wiring, metal outlet boxes, and all appropriate tools, including an electric drill, hacksaw, wire cutter, and non-contact voltage tester.
The best and easiest to follow how-to reference online for surface mounting electrical is available over at The Family Handyman, with detailed illustrations showing all the required connections for designing and installing a similar system to YTA's installation. According to their instructions, a short run can be done in an hour. Just remember to always turn all power off before even poking around electrical systems, and if in doubt, hire someone with electrical experience.
For those looking for a similar aesthetic without having to worry about adding or messing with electrical sockets and conduits throughout a room, there are these upcycled plumbing pipe sconce lights, part of Hammer & Heel's Live Wire Collection, or a slightly more steampunkish wall lighting fixture from Peared Creation (below).