What is the theme in Hold Still by Nina LaCour?

The external appearances of others is another major theme in the novel. Ingrid is perhaps the most clear example of this theme, as everyone always assumed Ingrid was fine, internally, aside from perhaps being melodramatic or moody. Inside, however, Ingrid was a mess, and along with her depression came a deep desire to hurt herself, and to end her life. Although no one could see this, Ingrid's journal shows the depths of her true feelings, proving that even her close friend, Caitlin, was unable to see beyond the external appearance Ingrid sought to maintain.