p.268. I think "check the box" would be better than "select the box".
p.269. "Insert > Cells Shift cells" should be Insert > Cells > Shift cells"
p.271. I think the note at the top is unnecessary. Password protection was labelled as optional in the previous paragraph.
"won't see" ASCII straight quotes.
p.272. The first tip is not a tip as it doesn't tell you to do anything. Should be a note.
p.274. Misspelled should be mis-spelled(?)
p.276. Reference to Fig 283 should be Fig 292. Reference to Fig 289 is also wrong - on p.277 it says the options are "not shown here".