Size in handwriting: large, medium, small

Use a ruler to measure the height of a typical middle-zone letter (the body of an 'a' or 'e'). Standard reference values: small handwriting has middle-zone letters under 2mm; medium handwriting has 2-3.5mm; large handwriting has 3.5mm or greater. Very large handwriting (5mm or more) is a distinctive variation.

The measurement should be done with the same pen the writer used. Different pens produce different visual sizes for the same actual letter heights. The middle-zone reference is more reliable than measuring full letter height because ascenders and descenders vary independently.

Note also the proportion of the three zones: the upper zone (ascenders of letters like 'l', 'h', 'b'), the middle zone (the body), and the lower zone (descenders of letters like 'g', 'y', 'p'). The relative size of each zone carries its own readings beyond the overall size assessment.

Large handwriting: the traditional reading is sociability, confidence, the desire to be seen, and outward-facing personality. Large writers are often described as expressive, generous, and comfortable in groups. The downside reading is attention-seeking or difficulty with restraint.

Medium handwriting: the traditional reading is balance between social engagement and personal containment. Medium-size writers are read as neither dominating nor withdrawing in groups. The most-common size in adult writing.

Small handwriting: the traditional reading is introversion, attention to detail, analytical focus, and a preference for observation over participation. Small writers are often described as scholarly, precise, and quietly competent. The downside reading is self-effacement or difficulty being heard.

Very large handwriting: an unusually-large size reads as theatrical, demonstrative, or attention-seeking. Some writers in highly visible public roles (actors, politicians) tend toward larger writing.

Very small handwriting: an unusually-small size reads as deeply introverted, highly focused, or in some classical readings as a sign of unusual intellectual depth. Many scientists and academics write small.

Upper zone (ascenders of 'l', 'h', 'b', 'd', 't', 'k'): traditionally read for ambition, intellectual life, and spiritual aspiration. Prominent upper zone (tall ascenders) reads as ambition or active intellectual engagement. Compressed upper zone reads as practical focus on the immediate.

Middle zone (the body of all letters): traditionally read for everyday social life, emotional life, and current relationships. The middle zone is the most-state-sensitive of the three; it changes with circumstances more readily than upper or lower zones.

Lower zone (descenders of 'g', 'y', 'p', 'q', 'j'): traditionally read for material life, sexuality, physical embodiment, and the unconscious. Prominent lower zone (long descenders) reads as strong physical/material engagement. Compressed lower zone reads as detachment from material concerns.