Linux Libertine Display Capitals by Philipp H. Poll is a free high-contrast serif font with stately proportions and a distinctly literary air. Its fine hairlines, broad verticals, and sharp bracketed serifs produce an elegant silhouette, with narrower lowercase forms adding a lively shift in scale.
Book covers are its clearest home. The crisp detailing also suits magazine mastheads, museum posters, and classical music programs, where engraved portraits or archival illustration can echo the lettering's refined thick-thin drawing.