book to learn the code

Hello,
I have sunfounder sloth robot 4-dot diy kit. I would like to understand the code/program of this robot and even créate a new one. Would you please recommend me a book to learn this.

Thanks

If Google can't find the instruction book for the robot then it probably does not exist.

Writing a program to control a robot is not simple and maybe you need to start learning Arduino programming from the ground up.

If you post a link to a web page that has details of your robot and if you tell us what sort of program you want to write we may be able to give a more useful answer.

...R