Once again, thanks to book club I've finally read something I've been meaning to pick up for ages! Skloot's writing reminded me a lot of a condensed, less technical version of Mukherjee's "Emperor of All Maladies" - one of my favorite non-fiction books and hands down my favorite science nonfiction book. Skloot isn't quite as in depth on the science part of her story as Mukherjee (which I think was a good choice - this was about the person Henrietta after all) but she did adequately explain the technical aspects of HeLa and cell cultures in general when necessary. By the end of the book, I was both amazed at how absolutely vital and revolutionary Henrietta was to science, but also disturbed by how the whole situation was handled concerning the Lacks family and other individuals who felt cheated by the medical field. 
 I usually get annoyed when authors insert themselves into the story they are covering, but Skloot does a good job of showing how she gained the family's trust and conducted her (very extensive and thorough) research without making the book about her.