Professor Zhao Pengfei who is the chief editor of this book has been devoted to publishing professional books on color science, image processing, digital media, printing process, food packaging and safety, printing and packaging materials and technology, and so on. He currently serves as the president of China Academy of Printing Technology and serves as president of Graphic Communication Press (now known as Cultural Development Press). He has been on publishing industry for more than 15 years; thus, he has numerous high-quality author resources on printing and packaging colleges and industries. As the chief editor, he has planned to publish a number of books. As a leader, he hosted 2016 China Academic Conference on Printing, Packaging Engineering & Media Technology, 8th and 9th China Academic Conferences on Printing and Packaging. And as a speaker, he made a keynote report in 2017 49th Conference of the International Circle of Educational Institutes for Graphic Arts Technology and Management & 8th China Academic Conference on Printing and Packaging. Min Xu who is also the chief editor of this book has been committed to the research on visual and color science, image processing of color printing, digital printing workflow and standardization on printing process, and so on. She currently serves as the executive chief editor of the journals of Printing Technology and China Printing and Packaging Study. And she is the chief editor of the journals of Digital Printing. As a leader, she hosted a number of international academic conferences, including the four sessions China Academic Conference on Printing and Packaging, and 2011 China Academic Conference on Green Printing and Packaging Materials, 2013 China Academic Conference on Food Packaging, 2015 4th China Academic Conference on Printing and Packaging, 2018 9th China Academic Conference on Printing and Packaging, 2019 10th China Academic Conference on Printing and Packaging, as well as numerous new technical seminars on printing and packaging. These conferences promoted the academic exchanges of the printing and packaging innovation and technological development at home and abroad.