This is specialized material on foot care and gel nails from the JNA Technical System. - Title: FOOT CARE - Title: GEL NAIL - Series Name: JNA Technical System I obtained up to Level 3 certification and quit before starting Level 2, so these are like new used books. The Foot Care book was brought to school once or twice but never taken out, and I quit learning about gel nails before I could study it, so I only read the Gel Nail book a few times. I believe these would be useful for those preparing for exams or for those who do their nails themselves. *No claims, no returns. Thank you for looking.