Photometric Atlas of Stellar Spectra by W. A. Hiltner and Robley C. Williams is an essential resource for astrophysical research, focusing on quantitative measurements of stellar radiation. Developed using the Coudé spectrograph at the McDonald Observatory, this work presents intensity tracings of spectra from eight bright, typical stars, along with spectrographic data and dispersion tables. The direct-intensity microphotometer is employed to achieve accurate tracings, correcting for nonlinear photographic plate characteristics. Offering insight into the spectrographic process, calibration methods, and error sources, the atlas provides invaluable data for astronomers and astrophysicists. The detailed tracings cover a wide spectral range and are reduced by a factor of two for publication, enabling precise analyses and fostering a deeper understanding of stellar spectra.