The name of the book is Case Management: A Practical Guide for Education and Practice by Powell and Tahan.
I looked for the book recommended by Grntea in other threads but couldn't find it and this other one has good reviews.
When I started getting more interested in CM I started paying a lot of attention to what they did in different situations like admit, transfer, discharge etc and started filing all that away mentally.
I read a lot of CM threads here on AN as well as looked up definitions listed on the job description before my interview. The job description said the candidate should be familiar with EMTALA, CMS Conditions of Participation, Patients Rights and AB1302 (I think it's 1302, I don't have my notes with me). I'm so glad I read up on those things because my interviewers asked me several pointed questions about those things and asked me how I would react to certain scenarios. My orientation will be three weeks, I'm a little nervous but I think I'll be a great CM.