This is an excellent book buy friend and colleague David Horner. It is a e very thorough look at the disappearance of Amelia Earhart with some new perspectives.
Check it out!
Link to Amazon, where you can buy it.
This is one that I co-authored with Andrea Niapas, Pennsylvania documentary maker. It is about the life and strange demise of Helen Richey, a close friend of Amelia Earhart’s. Andrea’s premise is that Helen knew the inside story behind Earhart's disappearance and that Richey’s demise was not a suicide as reported. It contains some disturbing revelations.