I'm not a midwife, just a first-time mom who is planning an unattended home delivery. My husband and I have both been delving into this book repeatedly getting prepared for the birth of our baby. I've not seen this depth of detail, length of discussion on each topic or breadth of coverage anywhere else. I'm sure there are medical texts out there and other midwivery texts, but this is easily accessable to the non-trained. I found that getting her first volume was necessary though (though thankfully much less expensive). I've ended up with no medical practitioner at all and so it has been essential to be able to look things up that don't just affect labor, delivery and post-partum.
This book covers everything from delivering babies who aren't in vertex, to homeopathy, to how to recognize a problem, to water births, to what supplies you might want on hand, to evaluating the flow of labor and evaluating newborn well being. It also gives guidence on when to transport.
Please note that this text says that you should review the anatomy and physiology that was covered in the first volume before reading that part of this second volume since much information is not repeated and is necessary to understanding.
Overall I'd highly recommend this text to anyone seeking an unattended birth who wants to be really, really prepared. ...or even to those who will have an attended birth, but just feel better knowing everything. It is a very expensive and extensive (and heavy!) text though, so if you don't truly need it you might not want to bother, but it is enjoyable to read.
Note to midwives: Much of her information on Orthodox Jews is not correct. Please do not go by her information. Check with the woman on her practices and viewpoints and, if you think you will be working with an orthodox women, you may want to speak with some local Orthodox Rabbis as they will be very glad to tell you what you need to know.