Transparent Languages, available from Recorded Books is an language learning service.
From the vendor:
Transparent Language Online offers the most comprehensive language-learning solution. With this flexible program, library patrons can quickly and easily learn new languages with our variety of courses and activities. Over 120 different languages, with 1,500 to 2,000 words and phrases for every language plus English learning for speakers of 25+ languages, are including intermediate-level immersion courses.
A flexible learning structure, including supplemental learning material and dozens of learning activities designed to engage your brain for rapid learning and maximum retention.
Transparent Language Online for Libraries is hosted exclusively on a secure Transparent Language platform that allows libraries to authenticate and manage patron accounts, and creates numerous usage reports to gauge activity.