Building a second brain, by Tiago Forte.
Such a good book to assist a person in establishing a tool that alleviates stress - lessening the demand and strain on memory. Establishes a resource tool for projects, keeping information handy for current and future projects. Put your thoughts and discoveries into a form that can be accessed, yet does not overburden your busy schedule. This book is a great resource.
My biggest take-away was to keep 12 questions on hand at all times, so that you are constantly building your resource file.