Business resources
The Lean Startup
How Today's Entrepreneurs Use Continuous Innovation to Create Radically Successful Businesses - by Eric Ries
This book will teach you to create a successful, scalable and sustainable business model, avoid common startup pitfalls, and measure your progress.
Selling the Invisible
Biz Books to Go - A Field Guide to Modern Marketing - by Harry Beckwith
This book is about marketing services and understanding the unique rules and tactics for selling intangible products, including skincare services.
Contagious
Why Things Catch On - by Jonah Berger
This book provides insights on how to make your products and services more shareable, thus increasing the potential for virality and growth within your targeted audience.