A man sits at a desk sharpening a quill pen with a knife. Coloured lithograph by P.H.L. Vander Meulen after Philip van Dyk. https://www.rawpixel.com/image/14014117/image-face-person-artFree Image from public domain licenseSomma de aritmetica, geometria, proporzioni, e proporzionalitá, etc / [Luca Pacioli]. https://www.rawpixel.com/image/13979275/image-paper-person-bookFree Image from public domain licenseBookkeeper sketch representation illustrated. AI generated Image by rawpixel. https://www.rawpixel.com/image/12426768/image-background-face-aestheticView license