p. 315: In the second paragraph, http://www.w3.org/XSL/Transform should be http://www.w3.org/1999/XSL/Transform
p. 320:
In the Contents section for xsl:choose,
"This element contains one xsl:when element" should read
"This element contains one or more xsl:when elements"
p. 333: The select attribute of xsl:sort
is optional, not required. If it's omitted, then the sort key is set to the value of the current node.