Sum and Substance

You, Your Universe, and Your World

By: William Martin

Narrated by: Virtual Voice

Sum and Substance is a concise, factual, and lucid summary of the history of our universe and mankind, giving broad understanding of the past, present, and future. Richly illustrated and augmented by insightful quotes from great thinkers, the book offers the ambitious hope that if you spend eight hours reading it, you may learn more than in any other eight hours of your life!

This book has been highly praised by reviewers from around the United States. Following are some of their comments:
“A timeless classic that will resonate with readers for generations to come.”

“An excellent read, with the broadest scope of any book I’ve ever read.”

“The book does not try to tell you what to think, but instead to provide information that helps you reach your own conclusions with a stronger foundation.”

“A real page turner. Could not put it down.”

“The photo illustrations are germane and well-chosen. The writing is persuasive, crisp, to the point.”

“The most informative 8-hour read you’ll ever have.”

“I have never read any other book like this, one that tries to tell the whole story.”

“An easy read for all humans to truly understand our uniqueness within space and time.”

“A great read for anyone who is looking for an effective book to help them understand the world and history.”

“A thought-provoking read.”

“The scope felt just right to provide perspective on our lives in relation to others.”

“Organized for the benefit of the inquisitive but non-scientific mind (all in less than 300 pages.)”

“The perfect gift for any friend who loves to read, reflect, and think.”

“What an awesome book! It should be required reading no later than every college student’s junior year.”

“The book is full of information and insights that are sure to help people grow their understanding of their reality and the world they live in.”

“I wish everyone could read it and be motivated to help meet today’s and future challenges.”

“Wit and wisdom inform every page.”

“A masterpiece!”