The demand to turn hit novels into films and television shows seems to grow daily, and an informed viewer is always the best kind of viewer. So before stories such as “China Rich Girlfriend,” the sequel to “Crazy Rich Asians,” hits the big screen or “Nightflyers,” “One Day She’ll Darken,” “Catch-22” and “Little Fires Everywhere” hit the small screen and streaming, there is ample opportunity to pick up their source material. There are also tie-in novels that started on-screen, such as “Marriage Vacation,” which a character in TV Land’s “Younger” penned in a storyline and was turned into a real book after the fact. And of course, there are ample new celebrity memoirs designed to reveal deep, personal insight into those who seem larger than life. For that latter category, “The Season of My Mother” by Marcia Gay Harden, “Pretty Mess” by Erika Girardi and Brian J. Moylan, “In Pieces” by Sally Field, “Brave” by Rose McGowan, “The Mother of Black Hollywood” by Jenifer Lewis and “Becoming” by Michelle Obama are must reads. These books range from $8.99 to $30, depending on retail outlet and format. Most are available in hardcover, paperback, audiobook and ebook. See more of 2018’s best-sellers here.