Note added next to the illustration of step 12 in the “Refining a mask” section, on page 166 of the printed book.
The illustration of step 12 may not match your screen, as it shows a much smaller brush than the 300-pixel brush we recommend.
The following text replaces step 8 in the “Using an alpha channel to create a shadow” section, on page 174 of the printed book.
8. Choose Edit > Transform > Rotate. Rotate the shadow by hand, or enter -15 degrees in the Rotate field in the options bar. Then drag the shadow to the left, or enter 845 in the X field in the options bar. Click the Commit Transform button in the options bar, or press Enter or Return, to accept the transformation. ...