It is the marginal annotations of Catherine Walston - 'C' - that provide the richest insights into perhaps the most secret of Greene's many love affairs.

It was compiled on the order of D. António de Ataíde, who was himself responsible for a good part of its extensive marginal annotations.

Virginia Woolf scorned the very idea of marginal annotation, imagining aggressive defilers leaving marks on a book's flesh.

Penetrating and casual, it has the startling, overlooked obviousness of Coleridge's famous marginal annotations.

Stephen Behrendt commented that this poem "comes with its own set of marginal annotations by (and in) several different hands.

An unidentified French owner in the 15th century was responsible for the replacement of the follios mentioned above, and for neat marginal annotations.

The book has marginal annotations made by the king.

Some of them survive with his marginal annotations.

Similarly, copyeditors often make marginal annotations or notes that explain or suggest revisions or are directed at the author as questions or suggestions (commonly called "queries").

Web-based text annotation systems permit users to upload texts so that people can produce marginal annotations with threaded discussions using a simple Web browser.