Did you validate a need for this book prior to starting? Do you see an exodus of lawyers leaving the profession? I ask because I don't necessarily see nurses leaving their professions although most everyone I know is unhappy with the job.
More than a quarter of licensed attorneys who graduated from law school in 2000 are no longer actively practicing for a myriad of reasons. A significant number from my year, 2008 hold jobs that don't require a law degree.
These articles should give you a glimpse into the situation. There were several others I really like from over the years, but I can't seem to find them at the moment.
http://www.nytimes.com/2015/04/27/business/dealbook/burdened...
http://www.slate.com/blogs/moneybox/2015/04/30/job_market_fo...
I don't believe the general job market for nurses is as bad as it is for attorneys. People also have a great difficulty accepting a potential sunk cost, or refuse to believe that there's greater opportunity elsewhere once they have both feet committed somewhere.
The market for nursing isn't bad, although it's not as good as it was 5 years ago. Job satisfaction, however, is horrible.
I'll start a similar book and see if I can drum up some interest. Two things going for me: Nursing satisfaction is pretty low and burnout rates are pretty high.
http://www.everydayhealth.com/news/why-americas-nurses-are-b...
http://www.indeed.com/forum/job/nurse-rn/Want-leave-nursing-...
On a list of unhappiest jobs in 2013, nurses came in at No. 4. First place were associate attorneys, btw. I thought that was pretty funny.