Book excerpt: This book provides a critical account of the impact of Twitter on journalism, exploring how the news media has adapted to and normalised the use of the platform in the industry. Offering a comprehensive understanding of Twitter uses for journalistic purposes, this book explores the platform’s use as a ‘global village’, as an ambient news environment, and as a global marketplace. Drawing on two empirical case studies (United Kingdom and Greece), Dagoula examines academic conceptualisations of Twitter, journalists’ self-perceptions, and uses of the platform by a variety of media outlets and journalists. Adopting an evolutionary approach known as punctuated equilibrium, which consists of three stages of disruption, adaption, and normalisation, the author reveals the costs and benefits of Twitter’s impact on both the institutional values and practices of news journalism today. News Journalism and Twitter is an invaluable resource for researchers and students of digital journalism and media studies.