From two of the world's great physicists—Stephen Hawking and Nobel laureate Roger Penrose—a lively debate about the nature of space and time
FLASH SALE - Enjoy 70% off this week’s featured collection. Use code FLASH at checkout. Offer good on select hardcover titles only.
Stay connected for new books and special offers. Subscribe to receive 40% off your first order, plus a free ebook or audiobook.