NATIONAL BESTSELLER • The father of positive psychology draws on more than twenty years of clinical research to show you how to overcome depression, boost your immune system, and make yourself happier. "Vaulted me out of my funk.... So, fellow...
Price history
▲225.56%
Jan 6, 2023
€12.50
▲100.5%
Jan 3, 2023
€3.84
▼-50.13%
Jan 2, 2023
€1.92
▼-69.28%
Dec 31, 2022
€3.84
▲334.45%
Nov 20, 2022
€12.50
▼-76.98%
Nov 19, 2022
€2.88
▼-7.15%
May 22, 2022
€12.50
▲7.7%
May 8, 2022
€13.46
▼-7.15%
May 6, 2022
€12.50
▲40.04%
Apr 18, 2022
€13.46