𝑇ℎ𝑒 𝑞𝑢𝑖𝑐𝑘 𝑏𝑟𝑜𝑤𝑛 𝑓𝑜𝑥
Mathematical Italic maps each letter to its slanted serif twin, the same glyphs textbooks set variables in. It reads like deliberate typographic emphasis rather than a font trick.
Where it's used: Book and film titles in plain text, variable names in math chat, subtle emphasis where real italics are impossible.
Unicode block: Covers U+1D434–U+1D463; letter h uses the precomposed ℎ because no upright-italic equivalent exists in Unicode.