All known errors in the text are listed below:

p. 108:

  • The expression fn:normalize-space("Hello XQuery. How are you?") should have spaces between “Hello” and “XQuery” and between “How” and “are”—to illustrate space normalizing. The intended expression is fn:normalize-space("Hello   XQuery. How   are you?"). (Posted March 20, 2020.)

p. 236:

  • contains text should be contains text. (Posted March 20, 2020.)