Read The 7 Habits of Highly Effective People

Carnegie's 1936 rules: remember names, never argue, let the other person feel the idea is theirs.

Read Atomic Habits by James Clear to understand the power of small habits and how they can lead to significant personal growth

Cue, routine, reward; Duhigg on how habits work at Alcoa, Starbucks and in you.

Cal Newport on concentration as the skill of the century.

Allen's system of inboxes, next actions and weekly reviews; the productivity book.

Jim Collins on the eleven companies that made the leap and the hedgehog concept.

Csikszentmihalyi on the state of total absorption and how to live in it.

Kiyosaki's two fathers and assets versus liabilities; the personal finance book most people started with.