Inglés sin Barreras (2007 Edition) is a comprehensive, self-paced English language course specifically designed for Spanish speakers. The 12-volume set utilizes a "multimedia immersion" approach, combining visual lessons, audio practice, and written exercises to build fluency. Course Components (Per Volume)

The "audios" part of the keyword is often overlooked. People watch the DVDs but ignore the CDs. Here is the "retro immersion" protocol:

The course is structured to take a learner from basic greetings to complex social and professional interactions. Ingles Sin Barrerras DVD/BOOKS 1-12 Set Completo - eBay