This is a good autobiography of a long-term missionary.
The book ends at 1994, but at 78 years old Marie Ens is still serving God in Cambodia today (which means she has been a missionary for somewhere around 50 years).
The theme of the book is that God will always take care of His children even in the smallest of details and in the most difficult of circumstances.
This book has been an inspiration to me as my wife and I are just getting started in our work.
If you can get a copy, read it.