I first experienced this book when I was studying for an RSA in book-keeping back in 1993. Having recently changed jobs and gone back into the 'finance' world I have found it invaluable to refresh my memory and skills. Especially as the place I'm now working at hasn't yet joined the 21st century and gone computerised! Simple, easy to follow instructions that can be quickly translated into any working environment and this copy is mine and has been jealously guarded for 15 years!!