Firewalls Don't Stop Dragons: A Step-by-Step Guide to Computer Security and Privacy for Non-Techies | Price history
Price change log
11/23/2022: $18.14
11/15/2022: $9.99
07/30/2022: $34.99
04/17/2022: $28.99
02/27/2022: $28.94
02/18/2022: $28.99
02/11/2022: $28.85
01/04/2022: $29.99
12/28/2021: $28.59
11/06/2021: $28.99
10/16/2021: $29.99
09/16/2021: $30.99
09/02/2021: $30.58
08/25/2021: $31.58
07/27/2021: $34.99
06/21/2021: $28.56
06/13/2021: $30.56
06/06/2021: $33.24
06/02/2021: $34.99
04/20/2021: $41.18
03/11/2021: $35.59
02/19/2021: $36.1
02/14/2021: $44.99
02/12/2021: $42.8
02/03/2021: $43.41
02/01/2021: $42.75
01/27/2021: $42.8
01/24/2021: $42.86
01/23/2021: $42.88
01/20/2021: $42.94
01/19/2021: $42.98
01/17/2021: $43
01/15/2021: $43.04
01/14/2021: $43.08
01/13/2021: $42.98
01/10/2021: $43.39
01/08/2021: $43.44
01/06/2021: $43.46
11/28/2020: $44.99
11/27/2020: $43.18
11/12/2020: $44.99
10/22/2020: $43.83
10/16/2020: $44.99
10/15/2020: $41.57
09/03/2020: $44.99