Dr. Janice Selekman DNSc, RN, NCSN, a recognized expert in pediatric nursing, and NASN Past President Linda C. Wolfe MEd, BSN, RN, NCSN, FNASN are the authors of this text created to help you prepare to take the National School Nurse Certification Exam. This was created in response to many years of requests from School Nurses for a study guide related to the certification process and content. This is an overview of principles and concepts that are the foundation of nursing and working with children. Practice questions are included. ©2010.