Starlight is a novel software environment for developing and interacting with multimodal interactive electronic textbooks that provide a Dual User Interface, i.e., an interface concurrently accessible by visually impaired and sighted persons. The platform, named Starlight, comprises two sub-systems: (a) the ‘Writer’, facilitating the authoring of electronic textbooks; and (b) the ‘Reader’, enabling multimodal interaction with the created electronic textbooks. Up to now, the Starlight platform has been used for the development of 8 products that have been approved by the Pedagogical Institute of Greece and purchased for use in Greek Primary and Secondary Schools. A public version of the Starlight Reader has been released for free use by blind people. In this context, a number of copyright-free Greek texts and translated English books are offered as free downloads.