Experts in code writing and breaking tell tales of heroic risks and cat-and-mouse secrecy, where science meets deadly adventure and everyone from queens to soldiers to everyday citizens can pay the price.
2011 • 7.0 ★
1995 • 5.0 ★
1994 • 5.4 ★
2016 • 7.2 ★
1958 • 6.8 ★
