Another good book to read along with Drains PeriAnesthesia Nursing (Which is humongous to carry so mine is on Kindle) is "PeriAnesthesia Nursing Care- A Bedside Guide for Safe Recovery". Authors are Stannard and Krenzischek. It is a soft cover, easy to carry around, and bullet points PACU essentials including all the anesthesia types, pain management, and importance information for different procedures.