If you’ve read Beth Shapiro’s How to Clone a Mammoth, all of the content in this book should be pretty familiar. Helen Pilcher’s voice is entertaining, and some of her examples are different, but the basic concept is the same. I wouldn’t recommend reading both, though I would recommend either of them if you haven’t read the other.
The only thing you may not enjoy about Pilcher’s is the flippant humour — she even has a chapter about cloning Elvis, for example. She’s a stand-up comedian as well a biologist and a journalist, so it might well be that you just don’t get along with her sense of humour. I’ll admit it did begin to wear on me. Nonetheless, she presents the information clearly and in a way that’s easy to digest, so it might be the best way to get the information across for some folks.