Thanks to Catherine, my wife, and to Freya and Lena, my daughters, for their continued support and encouragement during the time it took to develop this book.

(Rune Rasmussen)

This has been possible due to my wife and son’s endearing support and for letting me off those precious family moments. Thanks Kalindini and Parth.

(Harish Gulati)

Thanks to Lisa, my wife, for her ongoing and unceasing support. To our boys – Aron, Micha, Eitan and Yishai – I hope that you will also go forward and share what you have learned with others.

(Charles Joseph)

Special thanks to Paul Shufflebotham, MBCS, for allowing us to draw on his experience of working as a data analyst.

(Clare Stanier)

My sincere thanks to Chinwe, my wife and Kamsy my son, for their support and understanding throughout the period of writing this book.

(Obi Umegbolu)