K.N.
The two most practical books I've used as a parent and as a professional working with parents are "How to Talk So Kids Will Listen and Listen So Kids Will Talk" by Adele Faber and Elaine Mazlish; and "He Hit Me First" by Louise Bates Ames and Carol Chase Haber. Another personal favorite is "Confessions of a Slacker Mom",(author upstairs and I"m not right now, :) as well as "Models of Love" by Joyce and Barry Vissell.