The book "Mastering Prezi for Business Presentations" by Russell Anderson-Williams emphasizes the importance of preparation before using Prezi. The author advises against opening the Prezi canvas without a clear plan in place. This approach helps avoid feelings of being overwhelmed or distracted by the blank canvas, allowing for a more focused and productive session.

Developing a solid plan beforehand enables users to visualize their ideas and organize their thoughts clearly, leading to more effective presentations. By focusing on the content and structure prior to engaging with the Prezi tool, users can maximize their efficiency and creativity, resulting in a polished and engaging final product.