are you looking for "schedules" in terms of naps?
I too used the Baby Whisperer book by Tracy Hogg, with my first child, as a "guideline."
For napping, it's good to have a schedule... then, as the baby gets older, they will have good sleep habits... it also "teaches" them when naps are and they will be less prone to protest about it. I have done that with my son, and now at 22 months old, he still naps twice a day at 9:30 in the morning and then at 2:30-3:00 in the afternoon, at which time my 5 year old daughter ALSO naps. It is great, for me, and them... they are rarely over-tired or fussy because they get adequate and needed sleep. It is also good for their development and brain development. I believe in "regularity" per sleep habits... it has been a positive thing for me and the kids.
In fact, they are both taking their afternoon nap right now. So it's "my" time. :)
Depending on yourself... some don't like to have "schedules." It's up to you.
Basically, a child/baby has a pattern of: wake up, nurse/feed, awake time, then nap.
I arrange my own schedule around my child's nap times... they only sleep/nap at home... not when I am out on the road or in the car. At home is where they get the best sleep. So, at those times I am home. This also gives me a great way to "schedule" myself too, since I "know" they nap at certain times... that way my and their schedule is not willy-nilly nor do I have to "guess" at when they should nap. So I am able to plan ahead and schedule things fine. My Hubby also likes that I have taken the time to "teach" my kids about a nap routine... that way, it's easier for him (LOL) since he knows he can count on them napping at a certain time, and he can schedule things around that as well. It's more predictable that way when you "know" when your kids will nap.
Well that is just what I have done. No matter what, consistency is important. For me, I stick to their nap times like glue... unless I really can't avoid it.
Good luck
~Susan