I think that global public health workers are some of the most inspiring and dedicated professionals I’ve ever encountered. That’s probably why I’ve invited a number of them to sit down over the past couple of years for interviews for “Two Way Street.”

If you go to Amazon and search for books about Abraham Lincoln, you’ll get 101 pages of results; and that’s only the books that the online retailer has in its own inventory. There are no doubt hundreds of books that are out there that Amazon doesn’t stock for one reason or another. Lincoln is certainly one of the most written about figures in world history, and some of us just can’t get enough of reading about him. It doesn’t matter that a new biography may cover much of the same ground that the