Home Slickdeals The Astronomy Book or The Math Book: Big Ideas Simply Explained ... Slickdeals The Astronomy Book or The Math Book: Big Ideas Simply Explained [Kindle Edition] $2.99 each ~ Amazon By ARCOM - 24 November 2019 113 0 SHARE Facebook Twitter Go to the deal page: The Astronomy Book or The Math Book: Big Ideas Simply Explained [Kindle Edition] $2.99 each ~ Amazon