Preface The Secret to Success Chapter 1 The Imprint of Time The Evolution of Train Tickets The Train Timetable A Nostalgic Connection to Home Chapter 2 The Awesome Innovation of the 12306 System The World's Most Difficult System Architecture The Disparity Between Ideals and Reality A Smooth Network as the Highest Priority Going Global and Braving New Waters Chapter 3 The Threat of Ticket-Grabbing Apps Who Stole My Ticket A Clash Without Commotion The High Fence A Glimmer of Hope from the Waiting List Chapter 4 The Wisdom and Energy of Great Minds Ma Junpei and His Students Shan Xinghua and Her Stories The Birds Flying High in the Sky Thousands of Flowers that Make the Spring Chapter 5 Data that Begins to Think Big Data and the Passenger Ticketing System The Art of Balancing The Charm of User Profiling The Promising Future of Big Data Chapter 6 The Intelligent and Happy Travel The Snazzy Station Entry via Facial Recognition The Era of Paperless Passenger Tickets The Monthly Pass Traveling with Delicacies Meeting the Expectations of Special Groups Chapter 7 True Feelings in Beautiful Voices One Call, Many Solutions Easing Passengers' Worries The Value of Big Data The Grievances and Worries of Customer Service Staff Epilogue The Model of the Times Afterword How Did the Journey Begin