It is a comprehensive (really) book - Mind Your Business: A Workbook by Ilana Griffo really helps you to understand the topic
Britney2002 D. RitzWashington
I found this book very helpful - Ilana Griffo is a great teacher and writer. Probably Mind Your Business: A Workbook is the one of the best on the topic
Johnny London
Mind Your Business: A Workbook ebook PDF is a good option for a student. Personally I bought a hardcover version, my colleague has also purchased a kindle PDF version. Ilana Griffo is one of my favourite authors from now.