I love reading newsletters.

But only the right newsletters.

(A lot are a waste of time, unfortunately.)

If you are at all interested in learning {Topic}, here are the 3 most worth your time:

1. James Clear's "3-2-1 Newsletter"

James Clear, an author of the well-known book "Atomic Habits," offers his weekly newsletter called "3-2-1." It includes 3 short ideas from him, 2 quotes from others, and 1 question to consider.

Focus: Habits, productivity, self-improvement.

Why it's great: The format is succinct in nature, and the content therein comes with points to take action on, thus easy to digest and integrate into your life.

2.Ryan Holiday's "Daily Stoic"

Bestselling author of "The Daily Stoic," Ryan Holiday, offers a daily email that provides practical wisdom and insights from ancient Stoic philosophy.

Focus: Stoicism, resilience, and mental clarity.

Why it's great: The daily doses of Stoic wisdom aid in developing mental toughness and pose a philosophical way to handle modern-day challenges.

3. Tim Ferriss' "5-Bullet Friday"

The author of "The 4-Hour Workweek," Tim Ferriss, shares his favorite books, gadgets, quotes, and more each week in his newsletter.

Focus: Hacking productivity, personal growth, life.

Why It's Great: Ferriss saves a very wide scope of recommendations and insights, furnishing readers with useful resources and inspiration for personal growth.