sentences:  Rothfuss organizes the charity Worldbuilders, which, since 2008, has raised over $9.5 million, primarily for Heifer International, a charity that provides livestock, clean water, education, and training for communities in the developing world.At the end-of-year fundraiser for 2017 Worldbuilders raised $1,225,357 for Heifer International.In August 2012, Rothfuss began a monthly podcast called "The Story Board" on fantasy, featuring authors such as Terry Brooks and Brandon Sanderson.