Theory:

Sequential flowchart gives us the orderly/sequential procedure of a process.
Let us look at a simple problem of picking up a book from the book shelf.
 
Always begin with the step-by-step procedure.
 
1. Go to the bookshelf.
 
2. Search for the required book.
 
3. Get the book from the bookshelf.
 
Now let us look at the flowchart for the given problem:
 
Figure 7.svg