Signature analysis: what your signature reveals

The signature is a deliberately-designed piece of handwriting. Unlike regular writing, which the writer produces unselfconsciously, the signature is consciously developed and refined over many years. The classical reading is that the regular handwriting reveals who the writer actually is, while the signature reveals who they want to be seen as.

Comparing the two is one of the most-revealing exercises in graphology. A signature that closely matches the regular handwriting reads as integrated, authentic, and self-aware. A signature that differs significantly from the regular handwriting reads as a writer with a deliberate public persona that differs from their private self.

Most writers' signatures differ slightly from their regular handwriting. The differences are diagnostic: a signature that is much larger reads as wanting to be seen as bigger than the daily self; a signature with stronger pressure reads as wanting to be seen as more forceful; a signature with elaborate flourishes reads as wanting to be seen as artistic or distinctive.

Legibility: legible signatures read as transparent self-presentation, the writer comfortable being known. Illegible signatures read as guarded or as wanting to project mystery. Many professionals with public-facing roles have evolved illegible signatures specifically to protect against forgery; the reading is contextual.

Size of the signature relative to regular handwriting: a signature larger than the regular handwriting reads as the writer wanting to appear bigger or more confident in public than in private. A signature smaller than the regular handwriting reads as the writer wanting to appear more modest in public than in private; this is less common but does occur, particularly in highly-public people who are private by temperament.

Capitalisation and the first letter: an exaggeratedly large first letter (often the initial of the first name) reads as strong self-pride or attention to the self. A normal-size first letter reads as comfort without the self without exaggerating it.

Underlines and flourishes: an underline beneath the signature reads as self-assertion or the desire to make a mark. The longer and more elaborate the underline, the stronger the assertion. A signature without any underline reads as quieter self-presentation.

Position of the signature on the page: a signature centred reads as comfort with attention. A signature far to the right reads as forward-orientation. A signature far to the left reads as reservation. A signature very high on the page reads as ambition; very low reads as practicality.

Many famous signatures are studied as graphology case examples. John Hancock's signature on the Declaration of Independence is the most-cited example of self-assertion (the deliberately-oversized signature with strong underline). His signature is so prominent that 'a John Hancock' became American slang for any signature.

Walt Disney's signature was so distinctive that the company adopted it as a logo. The signature reads as decorative, artistic, and self-presenting; Disney specifically refined it over years to project the visual identity he wanted associated with his work. Most artistic and brand-conscious public figures develop their signatures with similar intent.

Donald Trump's signature is heavily slanted, with aggressive verticality and pronounced flourishes. Whatever one's politics, the signature reads consistently with the public persona he projects: assertive, dominant, attention-seeking. The signature aligns closely with the public self he has cultivated.