My research focuses on bridging our deepest understanding of galaxies, which comes from the local galaxies in our backyard, with the first seeds of galaxies in the very distant and early universe. I am especially interested in how star-forming galaxies formed, reionized the universe, and evolved to the diverse population we see today. Using ground- and space-based multiwavlength observations (mostly X-ray, UV, optical, and IR spectra), I study the chemical and stellar evolution of star-forming galaxies, near and far. These observations probe the feedback between the ionizing stellar populations and their surroundings, revealing the properties of massive stars, high-mass X-ray binaries, resonantly scattered emission, galactic-scale feedback, interstellar medium absorption, and nebular emission.