Static Visuals Interactive Visuals
Spatial Data Visualization

The eclectic craft of data visualization embraces several traditionally discrete subjects like cognitive science, graphic design, cartography and computer science. I use this multidisciplinary recipe to visually communicate various real world phenomena occurring in all walks of life around us as filtered through my analytical thinking.

CartoSkill is a key to visually explore, analyze and understand the multifaceted cause of a particular phenomenon and their corelation. Such occurring if represented through simple data sheets will be dry, difficult and boring. But I dish them out effectively and accurately through visuals that are aesthetically appealing, as well as easily perceivable. My process of preparing geo data visuals for CartoSkill is as follows :

Data Collection


Collection of data from various sources.

Data Integration


Integration of data into a common platform.

Scale, projection and symbolgy


Identification of appropriate scale, projection and symbolgy.

Prototype building


Prototype building and redrafting of the visualization layout.

Final output


Preparing the final static / interactive visual.

I am Arunava Dey from Kolkata, India.
Cartographer, Full Stack Developer, Open Source enthusiast.

I have more than 5 years of experience in Map making, GIS analysis and development. I have worked in various projects spanning into different fields like Defense, Municipal GIS, Forestry and others. I specialise in Web GIS development using Open Source software.

I did M.Tech. in Geomatics from Indian Institute of Surveying & Mapping, Hyderabad. Before that I did Masters in Geography from Pune University, Pune.

Currently I am working as Research Assistant at Town & Country Planning Organisation, Ministry of Urban Development, Govt. of India. My primary responsibilities include interpretation of collected data, preparation of reports, organising and supervising surveying teams, preparation of GIS database for Master Plans, preparing thematic maps.

GIS & Mapping

ESRI ArcGIS 10x, QGIS, GDAL, Tilemill, GeoServer, Open Layers, Leaflet

Web Development & Designing

HTML5, CSS3, Javascript & jQuery, Twitter Bootstrap, D3.js, Adobe Photoshop, Adobe Illustrator

Programming & Database

My Skill set

Feel free to contact me if you have a project in mind, or have a look through my Data Visualization works.


Persons killed
Persons injured

Number of terrorist events by country total



Top 50 Terrorist Groups by number of terrorist events
Excludes unknown groups



Attack Type
Weapon Used
Target Category


Data Source: National Consortium for the Study of Terrorism and Responses to Terrorism (START)

Global Terrorism Database

University of Maryland, United States

Have you noticed?

  • Bombing/ explosion is the most common attack type throughout the time period. But the common target group is shifted from Business in early years (1970 - 1975) to Private Citizens & Property.
  • Explosives/ bombs and fire arms are consistently preferred weapons all over the world for terrorist activity. However the same shows some variation at country level for different time periods. Eg. In Japan, although number of terrorist attacks is few, most of them used radiological weapons, unlike any other country.
  • There are some debatable data/ entry in GTD. Eg. during 1990 -1992, the 5th terrorist group by count of events is 'Palestinians'. However Wikipedia defines Palestinians as 'the modern descendants of the peoples who have lived in Palestine over the centuries, and who today are largely culturally and linguistically Arab due to Arabization of the region'. Why/ how all civilians of a country be termed as Terrorist?
  • These observations are based only the GTD database and do not consider any other information/ situation.

The Static Visuals are complete graphical representations, highlighting the significant aspects of a particular phenomenon and instantly communicating with the viewers. The aesthetically designed visuals are effective in communicating complex data which are otherwise difficult to grasp.

The interactive visuals as prepared on my site take the viewer on an journey through an artistic and innovative medium. My Interactive Visuals are meant to bring home the multivariatedness of a happening creating a deep impression upon the viewer's mind.