Gary Craig introduced EFT to the world in 1995.  He writes about it here: https://www.emofree.com/eft-tutorial/eft-tapping-tutorial.html

And there is more here and on his website https://www.emofree.com/eft-tutorial/eft-tapping-tutorial.html

Here Is Your Free E-Book, The Unseen Therapist by Gary Craig, EFT Founder: https://www.emofree.com/unseen-therapist/prelim/read-this-first.html

What is Tapping? Excerpt from https://www.thetappingsolution.com/blog/what-is-tapping/

    Tapping is a combination of Ancient Chinese Acupressure and Modern Psychology that works to physically alter your brain, energy system and body all at once.

    The practice consists of tapping with your fingertips on specific meridian points while talking through traumatic memories and a wide range of emotions.

   As Dr. Dawson Church says, “Acupoint tapping sends signals directly to the stress centers of the mid-brain, not mediated by the frontal lobes (the thinking part, active in talk therapy).” Because EFT simultaneously accesses stress on physical and emotional levels, he adds, “EFT gives you the best of both worlds, body and mind, like getting a massage during a psychotherapy session.”

    In fact, it’s EFT’s ability to access the amygdala, an almond-shaped part of your brain that initiates your body’s negative reaction to fear, a process we often refer to as the “fight or flight” response, that makes it so powerful.

Nick Ortner Talks About How to Rewire the Brain with EFT - The Tapping Solution: 22 Mins: https://youtu.be/ZfZBHWSbrsg

How to Tap - with Nick Ortner of The Tapping Solution: 5 mins https://youtu.be/XRfLTQjJhp0

How TAPPING Can Help Reduce Stress & Anxiety About Coronavirus: 15 mins https://youtu.be/d3XiDmhrxLk

Overcome Addictions with EFT (Tapping) with Judy Lynne: 10 mins https://youtu.be/LeOWJ6RjluU

How to Stop Cravings Fast!  With Jessica Ortner - The Tapping Solution: 15 mins https://youtu.be/6YMLbvd61Cg

Addictions with Piers Cross: 12 mins https://youtu.be/Zs0zAr-zpsE

Fear and Panic Right Now - EFT Tapping with Brad Yates: https://youtu.be/ajW1b-6jgJY

Anxiety - Tapping with Brad Yates: 9 mins: https://youtu.be/K6kq9N9Yp6E

Dealing with Intrusive Thoughts - Tapping with Brad Yates: 9 mins https://youtu.be/n909IhnXL-k

Clearing Fear and Worry - Tapping with Brad Yates: https://youtu.be/heQvpti4uvo

Release Anxiety & Fear (Power Tap) with Jen Partridge: 16 mins https://youtu.be/bqelDpGePM4

Wipe Out Negative Thoughts & Limiting Beliefs with Nick Ortner:16 Mins https://youtu.be/0xp6AfcntJ0