Where to begin?
Let's start out with the most negative thing I can say about this book: If you come to it expecting to read writers with the communication skills of Bart Ehrman, you will be very disappointed. No offense to the various authors but perhaps it would help them to read how Professor Ehrman writes. To say these authors were dry is like saying the Pacific is a bit moist.
Having said that, if you want to delve deeply into scriptural criticism and understand why sophisticated theologians reject the physical resurrection of Jesus, this book is priceless. But do not try, as I did, to read it as narrative. Heavily referenced, profoundly researched, and (sadly) extremely academic in style, The Empty Tomb is almost a reference book on how to debate and discuss the single most important "fact" in Christian mythology.
The authors of the various essays are all either noted intellectuals or, in the case of one, a well-respected internet blogger (co-editor of the collection) whose essay I am pleased to say is the most readable of the collection. The most fascinating thing about these essays is how disparate they are. They span history, philosophy, textual criticism, mythography, and "replies" to noted Christian apologists (notably Swinburne and William Lane Craig).
Structurally, this is not a cohesive collection. Each author's essay(s) is/are works unto themselves though the multiple contributions by Richard Carrier and Robert Price do refer back to each author's previous essays.
If I were to pick just two essays that are essential to grasping the central arguments, they would be "Is There Sufficient Historical Evidence to Establish the Resurrection of Jesus" by Robert Greg Cavin, and "The Spiritual Body of Christ and the Legend of the Empty Tomb" by Richard Carrier. The Carrier essay is itself nearly book-length and requires the reader to be extremely fluent in the history of the New Testament's composition and in early Christian beliefs (specifically the distinction between Pauline Christianity and the growth post-gospel). That I see this essay as essential in no way makes it an easy read. The Cavin essay, by contrast, is shorter and highly educational on the use of truth-functional calculus (a.k.a. logic) to make the case against the physical resurrection. If the reader absorbs Cavin's arguments AND his methodology, several of the essays in the book become easier to understand and the proofs lain out in later essays become legible to the non-mathematician.
Several of the essays touch on topics familiar to atheist or well-read Christian readers: Jewish traditions of the messiah, the arguments against Mark's account of the resurrection being in the original, the absence in Pauline writings of reference to the bodily resurrection, and some sideline points regarding other plausible explanations relating to culture. I would recommend reading the two essential ones listed above, then come back to the other essays later.
To rehash, the essays are largely academic, many of the authors should consider Bart Ehrman's approach, there is a great deal of good information for the reader who makes the effort to explore the essays and their citations, and two of the essays make the whole book worth reading.