Palaeography (UK) or paleography is the study and academic discipline of the analysis of historical writing systems, the historicity of manuscripts and texts, subsuming deciphering and dating of historical manuscripts, including the analysis of historic handwriting, signification and printed media. It is primarily concerned with the forms, processes and relationships of writing and printing systems as evident in a text, document or manuscript; and analysis of the substantive textual content of documents is a secondary function. Included in the discipline is the practice of deciphering, reading, and dating manuscripts, and the cultural context of writing, including the methods with which writing and printing of texts, manuscripts, books, codices and tomes, tracts and monographs, etcetera, were produced, and the history of scriptoria. This discipline is important for understanding, authenticating, and dating historic texts. However, in the absence of additional evidence, it cannot be used to pinpoint exact dates.

Handwriting is the writing done with a writing instrument, such as a pen or pencil, in the hand. Handwriting includes both block and cursive styles and is separate from formal calligraphy or typeface. Because each person's handwriting is unique and different, it can be used to verify a document's writer. The deterioration of a person's handwriting is also a symptom or result of several different diseases. The inability to produce clear and coherent handwriting is also known as dysgraphia.