N-COUNT
A casebook is a written record of the cases dealt with by someone such as a doctor, social worker, or police officer. (医生保存的)病例; (社工的)书面记录; (警察保存的)案卷
After all, business-schoolcasebooksare full ofstories about fashionablecompanies that, insearchofdiversification, stretchedtheirbrand namespast the breaking point.
In recent decades, the casebooks have added the feminist point that joint filing tends to perpetuate a traditional division of labor by penalizing two-worker couples and to imposing a high marginal tax rate on working wives.