Minni--that was absolutely beautiful! And if you friend isn't a Christian you can direct her to Becky Bailey or Jane Nelson
GBD is specifically a Grace Based approach to Discipline that I developed based on the Hebraic view of parenting and on the model of God parenting us
It applies the tenets of the Christian faith to children (do unto others, fruit of the spirit, etc). Meaning, we are called to treat them that way, not be horrible while we demand it from them
My book Biblical Parenting is the book that explains GBD. At this time I'm having a hard time getting it from my publisher (long story, no reason to go into it), but I'm almost done with my second book Grace Based Living and it goes into everything that Biblical Parenting does AND a lot more! I'm self publishing it and it should be ready to fill orders in a couple of weeks