You're looking for information on "Conversaciones Escritas 3rd Edition" and possibly a free PDF version. Here's what I found:

A mobile-friendly "Supersite" includes 14 new short readings and videos (En breve) to supplement the physical text. Vista Higher Learning Why It Stands Out

Based on its strengths and weaknesses, I would rate "Conversaciones Escritas 3rd Edition" as follows:

is available, showcasing the "Lectura y redacción en contexto" approach. Author's Website Kim Potowski's homepage

provides an overview of the book's pedagogical focus on argumentative writing and social justice themes. Vista Higher Learning Accessing the Full Textbook

If you need the content of the 3rd edition right now, here are three ethical ways to get it for cheap or free.