Communicate better than you ever have.

Book releasing November 19th
"Effective communication starts with empathy. You need to understand the other person’s core motivations and desires before you can make an impact. This book is a powerful, comprehensive guide to personality differences and how to navigate them, so you can be more persuasive, create better relationships with your customers, and thrive in the modern economy. It is insanely valuable advice for any business leader!"
"Insanely valuable advice for any business leader!"
-Tony Robbins
If your job requires communication, like sales, management, recruiting, marketing, and more, this book introduces a secret weapon: Personality AI.
You’ll learn to use this technology to:

Communicate
more effectively

Write more
persuasively

Build trust
faster

Endorsements
Tony Robbins
Life Coach
"This book is a powerful, comprehensive guide to personality differences... Insanely valuable advice for any business leader!"
Full Quote
"Effective communication starts with empathy. You need to understand the other person’s core motivations and desires before you can make an impact. This book is a powerful, comprehensive guide to personality differences and how to navigate them, so you can be more persuasive, create better relationships with your customers, and thrive in the modern economy. It is insanely valuable advice for any business leader!"
Dharmesh Shah
Co-founder of HubSpot
“Drew and Greg explain how anyone can weave empathy into their everyday conversations with AI... Essential for anyone in sales, marketing, or leadership.”
Full Quote
"The pillar of successful companies is culture, and the foundation of a positive culture are relationships built from empathy. With this book, Drew and Greg explain how anyone can weave more empathy into their everyday conversations with AI. The book provides a whole set of straightforward, helpful ways to understand others on a deeper level. These lessons are essential for anyone in sales, marketing, or leadership."
Tom Proulx
Co-founder of Intuit
“Personality-driven artificial intelligence can actually help us be more connected... Invaluable book for any leader who wants to help their team be more productive!”
Full Quote
"When most people hear about AI, they may imagine machines replacing human creativity, thoughtfulness, and relationships. However, this book explains how personality-driven artificial intelligence can actually help us be more connected, more understanding, and more effective as we communicate with each other. A must-read for any leader who wants to accelerate their relationships and help their team be more productive!"
Sheila Jordan
CIO of Symantec
“This is a modern playbook for leveraging innovative technology to navigate interpersonal relationships.”
Full Quote
"Companies that are trying to grow in the 21st century economy must understand two critical things: how to empower people, and how to harness data. This book draws from multiple fields like data science, artificial intelligence, psychology and leadership to explain how enterprises of any size can use Personality AI to grow and thrive. It’s a modern playbook for leveraging innovative technology to navigate interpersonal relationships."
John Barrows
Sales Trainer
"Predicting Personality shows you how AI can give you the kind of insights that have never been available before. Highly recommend for any sales team!"
Full Quote
"If you want to succeed in sales today, you need to understand how to connect with your clients on a deep level. In this book, Drew and Greg show you how AI can give you the kind of insights that have never been available before. Highly recommend for any sales leader and their team!"
David Cancel
CEO of Drift
"Use personality profiles to learn how your customers think and have better conversations... Essential reading for any people-oriented business leader."
Full Quote
"Understanding others is the key to successful communication and relationships, especially when you’re in sales, marketing, or leadership. With this book, Drew and Greg explain how you can start using personality profiles to learn how your customers think and have much better conversations with them. Essential reading for any people-oriented business leader!"
Dave Mattson
CEO of Sandler Training
"You'll better understand and communicate with the millions of people who may become your customers... Must read for any sales leader!"
Full Quote
"Sales is communication, pure and simple. The age-old saying “people buy from people” still rings true. Now, AI has unlocked the ability to get better insight into who we are dealing with prior to our first interaction. With this book, Drew and Greg explain how you can use this new technology to better understand and communicate with the millions of people who may become your customers. Must read for any sales leader!"
Jessica Yarmey
CMO of Club Pilates
"It's refreshing to see technology built around enhancing human relationships - not replacing them... A must-read for anyone looking to improve conversations and relationships."
Full Quote
"A must-read for team leaders, sales people and anyone looking to improve conversations and relationships. In a landscape filled with technology solutions that reduce human engagement, it's refreshing to see technology built around enhancing human relationships - not replacing them."
Tom Ferry
Real Estate Coach
"Predicting Personality packs in a ton of great information… and includes tangible tools for putting the concepts into practice as you communicate with clients."
Full Quote
"AI is an intimidating term for some, but the best marketers and salespeople are embracing this technological shift to understand their audience better than their competitors. Predicting Personality packs in a ton of great information, and also gives you tangible ideas for putting these concepts and tools into practice everyday as you communicate with clients."
Why you should read this book
With infinite channels and countless voices flooding them with messages, your customers, prospects, and employees have become highly skeptical and guarded by necessity. As a result, communication is much harder than ever before.
However, there are some professional communicators - executives, salespeople, recruiters, marketers, and others - who not only survive, but thrive in this environment. Instead of adding to the noise by trying to be the loudest one in the room, these leaders seek to understand the unique, diverse personalities of the people around them, and adapt.
Their secret weapon is Personality AI: a new kind of technology that forward-thinking, communication-focused professionals use to understand how others think and approach their conversations, emails, and meetings with confidence. This book will help you understand and unlock the power of Personality AI, with clear, practical advice for applying it in your most important conversations, including negotiation, conflict, feedback, cold outreach, and more.
Preview
About the Authors
Drew D’Agostino
CEO of Crystal
Drew D’Agostino is the CEO of Crystal. Previously, Drew was CTO of Attend.com, an event management software company. He is a thought leader on Personality AI and has been featured in Inc, Fortune, CNN, Fast Company, MIT Technology Review, Wired, and the Guardian.
Greg Skloot
President of Crystal
Greg Skloot is the President & COO of Crystal and a passionate evangelist for leveraging AI to help people understand anyone’s personality and build stronger relationships. Previously, Greg was Vice President of Growth at fitness-technology startup Netpulse, which was acquired by eGym in 2018 and the CEO of Attend.com.
Crystal v5 date available
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Bulk Purchase Rewards
We are offering special rewards for anyone who purchases Predicting Personality in bulk. When you purchase...
10 Books
Reward: Full personality reports for each person
Details
When you purchase 10 books in bulk, you’ll also receive 10 full personality reports. These reports provide in-depth insights about someone’s personality after they take the personality test on our website.
25 Books
Reward: Full personality reports for each person and 2 group reports
Details
When you purchase 25 books in bulk, you’ll also receive 10 full personality reports. These reports provide in-depth insights about someone’s personality after they take the personality test on our website. You’ll also receive 2 group reports, which can be used to analyze how a group of people can collaborate better based on the unique mix of personalities.
100 Books
Reward: Live, private webinar for your team
Details
When you purchase 100 books in bulk, Drew, Greg or a member of our team will lead a live, private 1-hour webinar for you and your team. This virtual workshop can focus on personality, career fit, effective communication, or a more situation-specific topic of your choice.
500 Books
Reward: Half day, on-site personality coaching session
Details
When you purchase 500 books in bulk, Drew or Greg will come to your location and provide a half-day coaching seminar for a group that covers personality, career fit, and effective communication.
1000 Books
Reward: Keynote speech about personality AI
Details
When you purchase 1000 books in bulk, Drew or Greg will provide a keynote speech at your event or company location that pulls back the curtain behind Personality AI and explains how to use it for effective communication and relationship-building in any role.
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