Better yet, these personal-best and attagirl bromides offer the advantage of being apolitical, and Trump is nothing if not practiced in the art of generic, apolitical speech — a fact that John Oliver has shrewdly observed.

So the why of her book becomes easy to discern. She’s extending the Trump brand.

The intended audience for “Women Who Work” is a more mysterious question. Trump starts out presuming a wide range of female readers.

But a class bias at some point begins to reveal itself, and it’s not just in the business leaders she profiles — who, like Trump, are often the daughters of New York City’s elite. It’s in her discussion of Covey’s four-quadrant time-management grid, when she identifies grocery shopping as neither urgent nor important. (Do the groceries just magically appear in her fridge? Oh, wait. They probably do.) It’s in her confession that “honestly, I wasn’t treating myself to a massage or making much time for self-care” during the 2016 campaign. (Too busy.)

It’s in her description of her daily life, in which she somehow — until the election, anyway — managed to run her own company, serve as an executive vice president in the Trump Organization, train for a half marathon and spend time alone with each of her three children. Absent locating a wormhole in space, there’s really only one way to find time for all of these commitments, and that is with the help of staff. Yet her household help barely rates a mention in this discussion.

By the time Trump gets to her primer on maternity leave, she is, consciously or not, addressing an imaginary cohort of upper management and C.E.O.s. Back at work, she expects you to have a team. It is amazing how many times “Women Who Work” talks about the importance of Your Team. There are more teams in this book than there are in the N.F.L. In the case of maternity leave, she advises “to be present with your little one, and not wondering whether or not your team is floundering without you.” She adds that you should “Find someone trustworthy and capable on your team to act as a gatekeeper once you go on leave.” That way, they’ll bother you only when it’s truly important.

But here’s what really matters about parental leave, as far as Ivanka Trump is concerned: She seems to still believe — as she did during the presidential campaign — that Americans ought to be paid for it. She waits until the penultimate page of her book to say so. But she does. (She talks about affordable child care, too.)

These final pages were written before Nov. 8, 2016. (Trump says in the preface that she turned in her manuscript before she knew the election results.) And what’s remarkable is that she wrote them as if she thought her old man was going to lose: “We need to fight for change, whether through the legislature or in the workplace.”