import io


def read(*filenames, **kwargs):
    """ Read plain text file(s) """
    encoding = kwargs.get('encoding', 'utf-8')
    sep = kwargs.get('sep', '\n')
    buf = []
    for filename in filenames:
        with io.open(filename, encoding=encoding) as fobj:
            buf.append(fobj.read())
    return sep.join(buf)