A long-time career girl and former City of London investment banker, Sabina Mangosi has spent many years figuring out what she really wants to do with her professional life. Having tried and tested a variety of other industries - technology, financial services, telecoms, manufacturing, energy, to name a few - and frustrated with the plethora of dry and tedious business advice books, she has finally put pen to paper and completed her own guide to moving up (and down) the corporate ladder.