Pay in installments of $6.45 with
,
and
Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours ยท Estimated delivery Jul 22 - Jul 27
Promo Codes Available:
For Your Every Summer RSVP, with Code: SUMMER15
Description
Vitamin B12 for Cats: Overview, Dosage & Side Effects Cats.com Supplement Store Online Australia Elite Supps Nasal Delivery Benefits: Exploring Cyanocobalamin Spray for Optimal B12 Intake Mountainside Medical BPC 157 500mcg 30 count Capsules Warrior Makers
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.2 โ
โ
โ
โ
โ
Based on 21 reviews
Sort
Product Reviews
โ
โ
โ
โ
โ
5
Wonderful. This is the book on time I've been looking for.
Format: Kindle
This is the book about time that I wanted. Beautifuly done. Thank you.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 26, 2025
โ
โ
โ
โ
โ
3
Not so great unless you are willing to accept a certain amount on faith.
Format: Paperback
Similar criticism to my review of the Black Holes book: "Starts off ok, but quickly loses you. I have an extensive science education and quickly got lost. This topic cannot be easily explained in a brief book - the author is forced to jump over certain building blocks, and that just leaves the reader confused. I think this book series is good, but maybe not for abstract science topics."
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 11, 2026
โ
โ
โ
โ
โ
5
A fun read. Learned a lot.
Format: Kindle
I never expected to be able to understand Relativity or the more ethereal concepts of time. But Jenann brought them to my level. The language gets a bit flowery at times but I think that reflects that these ideas have a poetry of their own.
RL
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 10, 2023
โ
โ
โ
โ
โ
5
Clear, Concise, and Compelling
Format: Kindle
The author takes us in an extraordinary trip through and about time. In particular, the discussion about Einsteinโs Special and General Theories of Relativity were illuminating, clarifying a complex aspect of the nature of the universe. How should we think about time? This book will help the reader arrive at answers to that question.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 30, 2021
โ
โ
โ
โ
โ
5
Deep important and illuminating
Format: Kindle
Worth a second read. I keep going back to it.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 2, 2023
recommand products
L-Carnitine: 3 Ways Physique Pros Use This Fat-to-Fuel Powerhouse โ SteelFit USA
22.09
Amazon.com: Muscle Pharm L-Carnitine 3000, The Ultimate Liquid L Carnitine Supplement for High-Performance, Supports Metabolism, Hydration & Energy, Zero Sugar, Low Calories, Sour Cherry Flavor, 32 Servings : Everything Else
20.42
Fragment 176-191 & Mod GRF 1-29 & Ipamorelin - 12MG
25.23
How to Take L-Carnitine Correctly to Boost Your Training
28.29
L-Carnitine
23.66