★ A popular lecture on YouTube with 80 million views!
★ Pick of 300,000 swimmers!
★ Special inclusion of Jinjo Teacher's free swimming training routine!

★★★★★
“This is the real deal!”
“For the first time, I felt like I was riding on water!”
“Just breathe right in.
Since my breathing is clear, I can glide smoothly.
“This is really awesome!”
“The reason I haven’t been able to swim until now is because I found out about Teacher Jinjo late.”
“Wow, I’ve been swimming for 10 years and I finally get it!”

Create perfect posture faster than anyone else
A practical guide from swimming instructor Jinjo!

The first book by Jinjo, the swimming instructor chosen by 300,000 swimmers as their “life swimming instructor,” “Good Night Jinjo,” has been published.
Having taught over 5,000 swimmers for 12 years, I've pondered countless times over the question, "How can I give them tips to improve their skills faster?" and compiled my own know-how and key tips for immediately correcting posture into a single book.
From breathing to kicking, it covers the basics of swimming, as well as the problems and solutions of swimming strokes that were difficult to solve and frustrating, from freestyle to butterfly, and even tips for swimming with style, from the start to head-up breaststroke.
We've boldly eliminated complex theories and selected only effective methods that will immediately help improve your skills. We've also included illustrations to make postures and movements easier to understand.
Not only that, the book includes QR codes with the author's demonstration videos, as well as free swimming training routines created by instructor Jinjo himself so that you can practice according to your desired goals. This book will solve the concerns of all swimmers, from those who are just starting to swim to those who are frustrated because their skills are not improving.


“No more swimming, it’s just difficult.
“Feel the thrill of cutting through the water and gliding smoothly!”

This book is not simply about swimming techniques.
I explained the problems and solutions very simply but accurately so that those learning to swim could realize for themselves, "Oh, that's why I did that!" or "That was the problem!" and correct it.
(…) We boldly eliminated complex theories and selected only effective methods that will immediately help improve your skills.
(…) No more struggling in the water.
I hope you experience the thrilling feeling of cutting through the waves and moving forward.

--- From the "Prologue"

When applying breathing to freestyle, many people wonder how to breathe when doing left arm swings.
Hold your breath when doing the left arm swing.
(…) When rotating your left arm, hold your breath, and when you start rotating your right arm, exhale through your nose and say ‘Hmm~’, and when your face comes out, connect this with ‘Heo~’ and drink.
But when you do freestyle, many situations arise.
If you drink 6, you will have no problem continuing the next arm spinning, but there are many situations where you suddenly end up drinking 10.
If you find yourself breathing too much, don't panic. Just exhale 4 times while doing your left arm swing and then return to 6.

--- From "Breathing, the Eternal Homework of Swimmers"

Backstroke is said to be a stroke that, unlike other strokes, involves continuously rotating the arms without gliding.
In theory, yes, but that's the athletes' domain, and I'm going to teach you how to swim backstroke while maintaining a long glide.
First, to do backstroke gliding, you need to practice keeping your kick comfortable while raising one arm.
Here are some tips: First, when you put your hand in the water, don't put it in at 12 o'clock, but rather at 1 o'clock or 11 o'clock.
When you put your hand in, the rolling comes out naturally, but if you put it in at 12 o'clock, your arm will fall back and your hand will often fall to the crown of your head or the opposite direction.
This is also the reason for the zigzag backstroke.
If you put your arms in the 1 o'clock and 11 o'clock positions, your arms will naturally become straight.
Keep this state and kick all the way out.

--- From "There is also gliding in backstroke"

First, when doing the arm movement, straighten your legs, and when you thrust forward and your body hits the water, bring your legs forward.
And I kick when my head is completely forward or when my body is completely submerged in water.
This will create a precise streamlined shape that will allow you to kick in and move forward smoothly.
When you kick while your head is still facing upwards, there are many cases where you don't go forward and only your legs sink.
If your legs come in during the arm movement, don't panic. Just wait! Just thrust your arms forward to create a streamlined shape before kicking.
Since the propulsion of breaststroke is 70 to 80 percent from the kick, the timing of the kick is most important.
Always give me a kick if my head is facing forward.

--- From "Mastering Breaststroke Kick and Pull Timing"

You've probably heard of the "Hurrah" butterfly stroke, right? It's called the "Hurrah" butterfly because the way you come up with your chest facing forward and turn your arms looks like you're cheering.
When we get into the butterfly shape, we do the butterfly stroke, going up and down.
The way to fix the butterfly stroke is to lift only your chin after entering the water! You should only lift your chin here, otherwise your chest will point forward.
If you just lift your chin, your chest will be facing the floor, right? Maintain this streamlined posture as you exit the water.
Then your chest will be facing the floor and you can slide forward smoothly.
If you keep your chest facing the floor when entering and exiting the water like this, you can escape the butterfly stroke!
--- From "Waves are not ridden by hand_pressing the chest"

The most common mistake made when doing a side turn is pushing off the wall with only one foot after the turn.
If you are pushing off the wall with only one foot, it is because you brought your legs apart or failed to bring your knees toward your chest.
If you do not pull your knees in properly and do a turn while your body is straight, your knees will hit the floor or you will use too much force when turning.
Imagine yourself as small as possible, bringing your forehead closer to the wall, bending your arms, and pulling your knees toward your chest! This small body size will make it easier to turn.
Make your body as small as possible, then turn around while pressing against the wall!

--- From "Side Turn, How to Go Further and Easier"