Data visualization is the graphical representation of information and data. Data visualization provides a good, organized pictorial representation of the data which makes it easier to understand, observe, analyze. Python today is one of the most popular simple universal languages for data visualization. It is often the best choice for solving problems in Machine Learning, Deep Learning and Artificial Intelligence. Matplotlib is an easy-to-use, low-level data visualization library that is built on NumPy arrays. To install this type the below command in the terminal. pip install matplotlib Program 1 import matplotlib.pyplot as plt initializing the data x = [10, 20, 30, 40] y = [20, 25, 35, 55] plotting the data plt.plot(x, y) Adding title to the plot plt.title("Linear graph", fontsize=25, color="green") Adding label on the y-axis plt.ylabel('Y-Axis') Adding label on the x-axis plt.xlabel('X-Axis') plt.show()