This book is not well-suited for audiobook formatting. Because the supplemental PDFs listed in the description were not included with the audiobook, there were many times they were referenced but I was unable to utilize them. Crucially, anyone who does not already have foundational knowledge of the Enneagram would not have even been able to identify their type because the sample paragraphs were in a random order and assigned letters instead of numbers, so there would have otherwise been no way to know which paragraphs corresponded to which types. I came to this book with prior knowledge but hoping to clarify which between two types I am and am leaving with no more certainty than I did beforehand. This might be a good starter for newbies, but I would definitely not recommend it in audiobook formatting due to the lack of accompanying resources and difficulty navigating through the different sections and information.