SMU students have written a book to explain the Singapore Constitution and its underlying concepts to people who are not legally trained. Speaker of Parliament Mdm Halimah Yacob, who was guest of honour at the book launch on Wednesday, said that it is especially important to increase the population's understanding of the Constitution as it secures people's basic liberties. The idea for the book came about in 2011, after its authors realised that many people did not understand constitutional law. The presidential election had been going on at that time, said the book's editor, SMU School of Law fourth-year student Dierdre Grace Morgan, and people discussing it online did not seem to understand the role of the elected president.