RESTful Web Services with Dropwizard` by Alexandros Dallas is a good guide to get started with dropwizard. 
The author covers most of the features of dropwizard which includes creating RESTful End points, Database access, Authentication, Creating views by means of developing a sample Phonebook application.
The book is not an exhaustive guide to dropwizard and may not match the documentation provided on the Dropwizard official site. But the approach of developing a sample application adding features in each chapter might appeal to some readers.
If you are kind of person who likes learning a framework by developing a sample application, then you can pick this book. Otherwise I would suggest the documentation would suffice.