At two hours and twenty minutes this is deliberately compact, the sort of guide that fits inside a return commute and can be revisited whenever a particular conversation is looming. Practical advice benefits from that shape, since nobody wants a treatise on how to phrase an email.
Val Caruso narrates, and dryness is the required tone. Material of this kind falls flat if it is read too earnestly, because the humour is doing half the teaching.
Early listener scores are strong at 4.6, though from a small pool, so take that as encouragement rather than proof. Come to it if you have ever redrafted a message half a dozen times and still felt it said too much. Details are on the shelf below.