The size (such as running time, page count, or physical dimensions) of a product (software package, video, audio book, hardware component, etc.) that is being reviewed or of an object such as a book or video that is related to the current book and described by a <related-object> element
The units attribute must be used to name the unit of measure (minutes, hours, linear feet, pages, etc.).
<!ELEMENT size (#PCDATA) >
Text, numbers, or special characters
No sample is available at this time.