> using the ... operator which is analogous to the
> descendent-or-self axis or .. abbreviated path
> in XPath.
Just a minute... ".." in XPath is the parent: axis.
A little later on "//" is used in the middle of an XPath expressions "/Books//element", which assumes that "//" is equivalent to descendent-or-self:, while it is actually equivalent to "/descendent-or-self:node()", always starting at the document root (unless this has changed in XPath 2).
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