You can add notes to any e-book page using the top note feature. Here are some general rules to keep in mind:
By default, your instructor's notes are public. You can see them and reply to them. All students can also see all other students' replies.
When you author a note, the notes are always private. The only way your notes will be public is if you're replying to an instructor's note.
If the following instructions do not match your experience in LaunchPad, you may have a new e-book which has different highlighting and notetaking features. Notes are always private in the new e-book (instructors can't share notes with students).
A dialogue box will open where you can enter your note.
From an e-book page, click "Notes" and select "Add top note" from the drop-down menu