Billions & Billions: Thoughts on Life and Death at the Brink of the Millennium

Name: Billions & Billions: Thoughts on Life and Death at the Brink of the Millennium
Price: 14.99 USD
Availability: InStock
Rating: 4.7 (770 reviews)
Author: Carl Sagan

by Carl Sagan

Nonfiction Memoir

4.7 (770)

4.7 stars from 770 reviews. Top 92% of Nonfiction books we track.

292 pages~4.9 hr readPublished by Ballantine BooksPublished 1997-01-01

$14.99At peak price

Last checked: Jul 14, 2026

Price history: $1.99 – $14.99

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Price range: $1.99 – $14.99

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Perfect for you if...

You're curious about big questions: where we came from, where we're going, and what it all means.
You want science explained with wonder and clarity, not arrogance or jargon.
You appreciate thoughtful essays that move between cosmos and conscience, cosmos and human need.

Maybe not for you if...

You prefer narrative momentum to reflective ideas; these essays are contemplative, not plot-driven.
You're looking for technical scientific detail rather than accessible philosophical inquiry.
You're uncomfortable with discussions about mortality, loss of faith, or how to live meaningfully.

About this book

Carl Sagan's final book examines fundamental questions about life, death, the universe, and humanity's future. The collection of essays explores topics ranging from cosmic origins and the universe's fate to how science and compassion can address challenges ahead. The book also offers personal reflections on Sagan's thoughts regarding love, death, and God, written as he dealt with fatal illness. Throughout, Sagan maintains his characteristic forward-looking perspective and intellectual curiosity, presenting ideas about how humanity can prepare for the coming century.

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Price History

Kindle price over time. Green zones = periods when the book was free.

$1.99 – $14.99

Price has dropped 20 times over the last 6 years. Goes on sale roughly every 116 days. Typically stays discounted for 40 days.

Sales Rank

Amazon sales rank: lower number = better selling book. #1 is the bestseller.

Currently #6,954 in the Kindle store — a top-10K bestseller. Climbing the charts — 38% improvement recently.

Rating & Reviews

Purple line = star rating over time. Blue area = total review count growth.

Currently 4.7★ from 770 reviews

Gaining approximately 5 new reviews per month. Rating has remained stable at 4.7 over the tracking period.

Sale Prediction

Actual Predicted

This book goes on sale roughly every 116 days. Next drop estimated in about 4 weeks. Typical discount: 87% off.

Prices shown in USD from Amazon US. We continuously pull new data to improve tracking. If dates look old, it usually means there has been no significant change since the last data point.

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