Orosz was an engineering manager at large companies and writes from the side that rejects: how a resume actually gets looked at, how long that look lasts, and what survives it. Along the way he dismantles several myths about applicant tracking systems, which turn out to matter far less than the internet insists.
What I took from it
The difference between responsibility and impact. Saying you were in charge of a module says nothing; saying what changed because you were there, with the number or the fact beside it, says everything. That is exactly the problem of a services proposal: the list of what will be done convinces nobody, the description of where the company ends up does.
The rule of writing for the reader rather than for yourself. If a document gets seconds of attention, the first screen has to say what this is, and the detail lives further down for whoever wants to go there.
And the exercise he proposes at the end, writing two versions of the same document for two different readers, which makes obvious how much of what you write is filler that matters to neither.
What I left out
Nearly all the specific content: structures for new graduates, career changers, technical leadership profiles. Not my case and I will not pretend otherwise. The book also wears its date in the body: an entire chapter is devoted to the pandemic job market, urgent when it was written and skippable now. What holds up is the part about writing something a busy person will read, and that does not depend on the year.