Abstract: A memo marking strip for use in marking a place between pages of a document is formed from a thin elongated rectangular strip. The rectangular strip is preferably formed from a heavy gauge paper material and may be provided with various forms of writing guide line indicia to enable an individual to make notes thereon. Numeric indicia is provided on opposite faces of the strip in a manner to allow the numeric indicia to be displayed in an upright orientation from any edge of a document. The memo strip is preferably provided in a set of memo strips consisting of a plurality of different color groups, with the strips of each group being sequentially numbered.