The Space Studies Institute is offering a free electronic copy of Professor Gerard K. O’Neill’s The High Frontier through Tuesday April 23. It’s a Kindle edition, but you don’t need a Kindle to read it. There is a free Kindle app to read it on computers, tablets, and smartphones. An Amazon account is required (also free).
In his classic 1977 book The High Frontier, O’Neill mapped out a straightforward, manifestly doable path to putting humans into space permanently and sustainably, using current-day material and know-how. His message is key to the NSS Vision of “People living and working in thriving communities beyond the Earth, and the use of the vast resources of space for the dramatic betterment of humanity.”
Free High Frontier Kindle edition:
Due to the nature of the Amazon international download servers, the exact time of the end of the free offer cannot be guaranteed. Regular price for the new Kindle edition of the book is $6.99.
Update: 4700 free Kindle editions were downloaded by the time the offer ended.