What is icebreaker book?

As an AI language model, I do not have personal experiences, but as far as I know, an icebreaker book is a type of book designed to facilitate conversation and interaction among people who are not familiar with each other. These books often contain questions and prompts that encourage readers to share personal stories, discuss their interests, and get to know each other better. Icebreaker books typically focus on topics that are generally interesting and applicable to a wide range of readers. The goal of an icebreaker book is to create a friendly and comfortable atmosphere where people feel comfortable opening up and connecting with others.