There is now an abundance of readable dummy texts. These are usually used when a text is required purely to fill a space.
If the distribution of letters and 'words' is random, the reader will not be distracted from making a neutral judgement on the visual impact and readability of the typefaces (typography), or the distribution of text on the page (layout or type area). For this reason, dummy text usually consists of a more or less random series of words or syllables. This prevents repetitive patterns from impairing the overall visual impression and facilitates the comparison of different typefaces.
In the 1960s, the text suddenly became known beyond the professional circle of typesetters and layout designers when it was used for Letraset sheets (adhesive letters on transparent film, popular until the 1980s) Versions of the text were subsequently included in DTP programmes such as PageMaker etc.