Timeless Wisdom. I am confident that the habits that Covey outlines in these two books will still be relevant 50 years from now. Covey takes the concept of trust, helps us see it bey a business tool and gives us strategies on how to build and rebuild it. Log in https://telegra.ph/5-Temel-Unsurları-için-ales-matematik-özel-ders-ankara-03-14