• Google Charts is a pure JavaScript based charting library which is done to enhance web applications by adding interactive charting capability.
• Google Charts supports a wide range of charts like area charts , bar charts , pie charts and bubble charts .
• Google Charts are drawn using SVG in standard browsers like Chrome, Firefox, Safari, and Internet Explorer (IE).
• In Google Charts, VML (Vector Markup Language) is used to draw the graphics.
• Google Charts are exposed as JavaScript classes, and provides many chart types to use. 

• These are some of the salient features of Google Charts library.
• Compatability – It works seemlessly on all major browsers and on all kinds of mobile platforms like android and iOS.
• Multitouch Support - Supports multitouch on touch screen based platforms which are also known as mobile platforms like android and iOS and Ideal for iPhone/iPad and android based smart phones/ tablets.
• Free to Use – Google Chart is an Open source and is free to use for non-commercial purpose.
• Lightweight - loader.js core library in Google Charts is extremely lightweight library.
• Simple Configurations - Uses json to define various configuration of the charts and they are very easy to learn and easy to use as well.
• Dynamic - Allows modifying the chart even after chart generation is given.
• Multiple axes - Not restricted to x, y axis. Supports multiple axis on the charts.
• Configurable tooltips - Tooltip is used when a user is hover over any point on charts. Google charts provides tooltip inbuilt formatter or else callback formatter to control the tooltip programmatically.
• DateTime support – it handle date time specially and it also provides numerous inbuilt controls done over date wise categories.
• Print - Print the chart while using web page.
• External data – It supports loading data dynamically from the server and provides control over the data by using callback functions.
• Text Rotation - Supports rotation of labels which is done in any direction.

learn google charts - google charts tutorial -

google charts examples

- google charts code - google charts program - google charts download - google charts example

• It is very Easy to learn and easy to use
• It is said to be interactive with mobile based android platforms
• It works on all modern browsers and all kinds of mobile platforms like android and iOS
• It Includes maps which is a part of google chart which is given and it is used as well
• We need not paid to use Google Charts and it is free for anyone to use.
• It can read from Excel, Google Spreadsheets, SQL databases, CSV files and it can auto update as well

• It does not give us much customizability and also it does not give us other packages to use.
• It does not give us the sophisticated statistical processing done in Google Charts.
• If we need to use Google Charts, Network Connection is required.