The cover design for "Micra" by Samuel Hook masterfully combines scientific illustration heritage with contemporary design elements. Centered on a detailed vintage drawing of a tardigrade, the cover showcases various microorganisms rendered in a classical scientific illustration style. The Greek letter 'μ' (mu) - symbolizing the micro scale - integrates seamlessly with the historical aesthetic. The composition is dramatically enhanced with deep crimson accents that contrast against the aged paper texture, creating a striking interplay between historical scientific documentation and modern artistic interpretation. This sophisticated design pays homage to early microscopic discoveries while presenting them through a contemporary lens, perfectly encapsulating the fascinating world of microorganisms. The distressed textures and careful attention to anatomical detail evoke the golden age of scientific illustration, while the bold color treatment brings these microscopic wonders into sharp, modern focus.