The constitutions of many countries guarantee the right to vote for all citizens. However, in reality, voters who are outside their home country when elections take place are often disenfranchised because of a lack of procedures enabling them to exercise that right.
Voting from Abroad: The International IDEA Handbook examines the theoretical and practical issues surrounding external voting. It provides an overview of external voting provisions in 115 countries and territories around the world, including a map illustrating the regional spread.
"It is a resource reporting on a wealth of experience and provides an excellent first call for those interested in the topics covered. It is also - for those interested in the minutiae and esoterica regarding electoral systems - an intriguing source of not otherwise readily accessible information. … This valuable resource should be on every library and professional's bookshelf; it is also available online (free) at IDEA's website."
Professor Ron Johnston, University of Bristol
(2008) "BOOK REVIEWS", Representation, 44:2, 205-208
“This is a unique and timely resource, covering the key political, legal, and operational components of external voting programs. It will quickly become a must-read for academics, policy-makers, and practitioners interested in an under-explored but rapidly growing phenomena that links the democracy and migration fields. The cases are first rate, and the content and organization cover all the critical issues and options in a thoughtful and balanced fashion. I cannot recommend it strongly enough.”
Jeremy Grace, Elections Consultant and Senior Adviser, International Organization for Migration