In 18.4.4.4 the diagram for "Example: Non-streamable sorting" contains attribute::empNr as a child of the xsl:for-each expression, it should be a child of the sort expression according to the e-node representation directly above it.

In 18.4.4.6 "Example: A streamable recursive template" the function names div-depth and nesting-depth are used interchangeably for the same function in both the code and diagram.

In 18.4.4.3 it could appear that that dataflow is connected via the xsl:template, so the diagram "Example: A streamable loop" could easily be interpreted as:

<a> => xsl:for-each => xsl:template => child::employee => child::salary => descendant-of-self::text() => path