Selecting the parent of an element


I need to get the parent of an element but I’m running into some problems. So I fetch the child which is the correct one and then I want to retrieve the parent from it but it seems that it can’t find any element. Any suggestions?

        WebElement child = this.helper.getDriver().findElement("Books"));   //correct child
        List<WebElement> parents = child.findElements(By.xpath(".."));  //can't find anything even with find element