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Ruth. In hindsight, writing a book whilst having a baby and renovating a house probably wasnt the best ideawho knew? Thank you for your patience, love, and support. None of this would have been possible without you.

Sammy. I couldnt have imagined the joy and love youd bring into our life. Be kind, be brave, and be willing to take risks in pursuit of your happiness and passions. I love you so much.

Mum and Dad. Thank you for everything.

Thanks to Adaobi, my editor at The Pragmatic Bookshelf, for her constant positivity and encouragement, as well asexcellent editing feedback on the book to help make it as good as it can be. I will miss ourupdates and bonding over our mutual love of Gordon Ramsay.

I owe a great deal of thanks to the following people who gave up their valuable time to read andprovide feedback on the book (a thousand apologies if I have left anyone out):

• John Paul Ashenfelter
• David L. Bean
• Erin Dees
• Chris Johnson
• David Landry
• Nigel Lowry
• Alex Lynham
• Lee Machin
• Rory McCune
• Noel Rappin
• Chris Thorn
• John Yeates

The book is immeasurably better as a result of their contributions.

Id also like to thank everyone who purchased a beta copy of the book while it was still beingwritten. In particular, Id like to thank people who submitted errata during this processyour confusion, frustration, and pain have hopefully saved others from suffering the samefate.

Finally, a huge thank you to the entire Pragmatic Bookshelf team for taking on and supporting thistitle.