[KLUG Members] Drupal Access Control

[Green Proc]

Hi, this question is for anyone with experience with drupal and how to
control access to content (mainly the book module) based on a user's role.

What I wish to accomplish, is to create a role (say, Development
Planner), and have users of that role and only users of that role access
the book module content, for editing or viewing.  In other words, I wish
to keep all users from even knowing the book module content is there,
unless their user account is a member of a specific role.

Does anyone have experience with this?  If so maybe you could point me
down a particular path, or have a good reference regarding how best a
newbie could accomplish this.

Thank you  :)