If you're talking about the meals labeled PW in the ebook, then you could eat them after workouts, as, according to the "habits," you should only eat starchy/grain based carbs within about 3 hours of a workout. That's merely when they're "safest" to eat, if you know what I mean. You can have ANY type of meal after a workout, not just those PW ones.
If you're talking post workout nutrition (like PWO drinks), then more depends on your goals and athletic "efforts." If you're really working out in a sport or endurance activity, then you may need special workout or post-workout nutrition. Depending on how long each session is will help to dictate whether you need something to boost your energy during the activity. Generally, a decent meal before and after will do the trick for most people (athletes and aspiring athletes to the contrary).
Berardi has an article on workout nutrition for endurance athletes. You might read that from his site.
http://www.johnberardi.com/articles/.../endeating.htm
If I remember correcty, the recommendation was for something like a sports drink during and a protein/carb drink afterward. I'm not an endurance guy, so I don't remember the details...
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Superman never made any money
saving the world from Solomon Grundy
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