This is a collection of 25 short stories by 28 authors (including 3 co-authors) so you get a lot for your money. They are of mixed length and quality and, like most short story collections, you will like some better than others. You can read them in any order. You will find some of your favorite authors, and some new to you. Some of the authors are well established, and some are just starting out. I have read and reviewed full novels by many of the authors, and the collection provides me with some leads to others. Short story collections are always a good way to sample authors.
In the Introduction, Lee Child notes the difficulties for a new writer to get started. The days of pulp fiction and slick magazines are long gone. However, ezines have emerged. The problem is that ezines and small press literary magazines come and go from the scene. I did find one editor that liked my short stories and published two in ezines - but on the verge of publishing a third, she folded up shop and moved on to do other things. So it takes some hard work to keep track of emerging venues for publishing and to match up with an editor.
The International Thriller Writers has provided an opportunity for some emerging writers, both in this collection and earlier collections. They are worth sampling. Earlier collections pointed me to some very good novels that I read and reviewed on Amazon. I expect that this collection will do the same.