The Intercom marketing team has curated a list of five books that had an impact on them in 2019, which they hope will have the same effect on their readers. The books cover a range of topics, including technology, marketing, and writing. "The Inevitable" by Kevin Kelly explores the forces shaping the future of technology, while "How Brands Grow: What Marketers Don’t Know" by Byron Sharp argues that broad reach is key to real growth in marketing. "20 Ads That Shook the World" by James B. Twitchell provides context for the world of digital advertising, and "On Writing Well" by William Zinsser offers advice on writing effectively. Finally, "Make Time" by Jake Knapp and John Zeratsky focuses on creating time to focus on what's most important. The team's diverse perspectives and experiences are reflected in their selections, which offer a mix of practical advice and thought-provoking ideas for marketers and anyone interested in exploring the impact of technology on our daily lives.