Got this to help my daughter with her undergraduate dissertation. I'd done a masters dissertation and wish I'd had this book. It will save you a lot of time and give you a few ideas about how to approach it. Most of us only ever write one and it can be a steep learning curve. There are some real gems in here and it's well worth its asking price.
I was struggling so much before I bought this book! It has helped me so much! I would highly recommend, and even if you dont have time to read it there are frequent summaries of key points that are super useful!