We use and recommend Kettlewell's chartbook as Rick mentioned. We also use the Maptech chartbooks although they are a bit large to use at the helm. In addition we get the NOAA charts for offshore for most inlets we are likely to use. Chuck
Chesapeake Bay, ICW Hampton Roads To Key West, The Gulf Coast, The Bahamas
NOAA is the official source for information at the US coast. So I recommend to consult them at first.
If they do not have sufficient information in their portfolio they will be pleased to advice what to use.
If you contact the Cost Pilot branch pass my best regards to Tom and Holly