Answered! In your own words, please explain in the most simple and easiest to understand/basic/beginner level:…

it is normally only of use to programmers compilers and interpreters hardly ever care how much whitespace is present in between programming statements while developing the code or program.
on the other hand, certain programming languages depends on the use of indentation to differentiate programming structure,frequently using a difference of the off-side regulation
example for that today programming languages like Python programming languages usally on indentation in this way
Example: proper indentation(best case use of indentation)
Example program:
main() {
declaration of    variable;
for loop {
another for loop {
yet another for loop {
some work to be done;
another work;
}
code work;
}
Some code to work;
}
}
2.improper indentation.
main() {
variable declaration;
for loop {
another for loop {
yet another for loop {
code to be done;
another work;
}
code work;
}
some code to work;
}
}
There are many uses to use of indenting your code most of which save you time, including:
1.you can see at a quick look where the end of a code block is
example: where is the End If for this If
rather than having to read each line until you find it.
2.when you have used the same kind of code makeup several times
such as one If-End If inside another you dont need to work out which end of block goes with which start of block.
3.you can right away ignore piece of the code that aren’t related to what you are at present doing.
4.it is much easier to identify if a line of code is in the at wrong place
example: after an End If when it should be before it
indenting has no cause on how the code runs,and does not change the size of your ended program.

styles:

some common indentation styles are :

1, BSD KNF style
2. whitesmiths style
3.GNU style
4. K&R style
5.allman style