How Technology Works: The Facts Visually Explained (How Things Work) | Price history
Price change log
09/22/2022: $15.99
09/21/2022: $16.03
09/20/2022: $16.2
09/17/2022: $16.03
09/13/2022: $16.2
06/14/2022: $16.99
06/13/2022: $17.09
06/11/2022: $17.29
06/10/2022: $17.48
06/07/2022: $17.71
06/06/2022: $18.23
06/05/2022: $18.74
06/04/2022: $19.76
06/02/2022: $19.47
05/31/2022: $20.28
05/30/2022: $20.99
05/29/2022: $18.95
05/25/2022: $20.79
04/12/2022: $21.06
04/11/2022: $21.81
04/05/2022: $22
04/04/2022: $21.49
04/01/2022: $22
03/31/2022: $21.49
03/29/2022: $21.06
03/26/2022: $21.36
03/21/2022: $19.8
03/20/2022: $13.99
03/18/2022: $21.06
03/17/2022: $19.8
03/09/2021: $13.99
03/01/2021: $14.1
02/12/2021: $16.59
01/10/2021: $17.23
01/09/2021: $21.4
01/08/2021: $21.64
12/09/2020: $22
09/02/2019: $16.57
08/15/2019: $16.71
08/08/2019: $17.38
03/13/2019: $14.71
11/09/2018: $22
11/04/2018: $21.86
10/27/2018: $21.22
10/22/2018: $20.6
07/09/2018: $20