1. A method for displaying a combination of languages for digital content in an electronic device, the method comprising: receiving, at least partly in response to acquiring access to an electronic book, a version of the electronic book in a primary language, a version of the electronic book in a secondary language, and mapping content that associates words in the version of the electronic book in the primary language to corresponding words in the version of the electronic book in the secondary language; displaying, in an interface, a portion of content from the version of the electronic book in the primary language; presenting, in the interface, a control, wherein a selection of the control alters the displayed portion of content to display words corresponding to numbers or colors in the version of the electronic book in the secondary language in place of corresponding words in the primary language; receiving the selection of the control via the interface; and in response to receiving the selection of the control, altering the displayed words in the displayed portion of content by replacing words corresponding to numbers or colors of the version of the electronic book in the primary language with words corresponding to numbers or colors from the version of the electronic book in the secondary language.