hi,

there is quite a few books about import and export business, however it may be different for study purpose or just gain knowledge. however I suggest you to first search in internet and make a through research, now a days in internet there is more updated information, so besides reading any particular books you should  also research in internet. I have mentioned some book name below,

International Trade Operations - Dr.Ram Singh

A complete guide to Letters of Credit and the UCP 600 - Rupnarayan Bose

building  a import export business kenneth d weiss

a guide to exporting from india by ajay srivastava

foreign trade magazine on import export