NhiDongSunRang said:
@jueony: Do you mind putting up a list of male reference/tutorial books that have kindle version but you can't find it anywhere? I'll see if I can buy them and share them here :) I haven't followed this thread closely as I was before so I'm not sure which books were uploaded.

Since there are a lot of female focused books but mostly kindle bought male books are shared by me, I guess I'll keep them coming as long as I can.
And thanks Vivian for sharing those male books~

jueony said:

The easiest way to take screenshots of your ebooks would be using an automation tool such as uwsc and a screenshot tool such as snapcrab.

And because the resolution of your screenshots depend on your display resolution, you can get better images by changing your display orientation to portrait when you take screenshots.
(How to Change Screen Orientation in Windows 10)
※Why do I have to change my display orientation?

※Why do I have to change my display orientation?
Let's say you're using a 1920x1080 display and the original image size of your ebook is 2000x3000 per page. Then if you use fullscreen in landscape mode, the ebook will be displayed in 720x1080, because the maximum height of your display is 1080 pixel. But if you use fullscreen in portrait mode, your display will be 1080x1920. And the ebook will be displayed in 1080x1620, which means you can get better image quality. Of course, if your monitor is large enough to display your ebook at 100%, you don't need this trick.
Or you can just zoom the ebook to 100% and take screenshots & scroll, and merge the images with photoshop or something. But it takes too much time and is probably more difficult to automate.

And by using uwsc and snapcrab, it only takes 6~7 min to take screenshots 200 pages.
How to use uwsc and snapcrab

How to use uwsc and snapcrab
1. install snapcrab. And change options as you want(the folder you want save images, hotkey, image format, etc). Turn off the "Use a Self-Timer" option
2. Download uwsc.
3. Open your notepad.
4. Write something like this.

FOR i = 1 TO 200
KBD(VK_SNAPSHOT,CLICK,1000)
KBD(VK_RIGHT,CLICK,1000)
NEXT

If you execute this script in uwsc, it will repeat these 2 steps 200 times
-STEP1. wait 1000 ms(=1 sec) and click PrtScn key(which is a default hotkey to save screenshots in snapcrab)
-STEP2. wait 1000 ms and click right arrow key(=go to next page).

You can customize the script depending on your situation(number of pages, hotkey, wait time, etc).
You can also record your behavior into a script and edit your script.

You can get more information about uwsc by googling.
https://oxynotes.com/?p=11298 (Japanese)
http://nasutechtips.blogspot.com/2010/09/uwsc-powerful-scripting-tool.html (English)

5. And save as .UWS file( ex>test.UWS)
6. Open uwsc and load your script.
7. Execute the script. Don't touch your keyboard or mouse until your script is done.
8. Trim unnecessary part of your screenshots.
9. That's it.