Library

A library contains structured information about a collection of books. Some information is game specific, the rest is descriptive. Some systems, like d20, probably don't have much game specific content. Yags or Ars Magica tend to be quite detailed when it comes to books.

<library name="The Library of Asamath">
    <description>
        <para>
            A description of this book collection, as per any other description block.
        </para>
    </description>
 
    <book name="Some book or thing">
        <description>
            <para>
                Stuff about this book - what it looks like and what it contains.
            </para>
        </description>
 
        <statistics xmlns="http://yagsbook.sourceforge.net/xml/yags">
            <quality>4</quality>
            <level>10</level>
            <properties>
                <illuminated/>
            </properties>
        </statistics>
 
        <statistics xmlns="http://yagsbook.sourceforge.net/xml/arsmagica">
            <type>Summa</type>
            <skill>Artes Libralis</skill>
            <level>4</level>
            <quality>7</quality>
            <properties>
                <illuminated/>
            </properties>
        </statistics>
</library>

Technically, a book is an item of Equipment Descriptions, so should be treated as such. However, there is some information which is unique to books, but not game specific.

<item name="History of Gondor">
    <category>Book</category>
 
    <short>A book on the early history of the kingdom of Gondor.</short>
 
    <description>
        <para>
            Long and rambling text, with much scribbling in the margins.
        </para>
    </description>
 
    <book xmlns="http://yagsbook.sourceforge.net/xml/arsmagica">
        <type>Summa</type>
        <skill>History: Gondor</skill>
        <quality>5</quality>
        <level>6</level>
 
        <properties>
            <illuminated/>
        </properties>
    </book>
</item>