Shared book-reading (SBR) is a commonplace interaction in the home, yet for families with autistic children, little is known about the types of books parents read with their children, their frequency of reading these books, or how this routine relates to those in families with non-autistic children. This study thus compared the frequency of SBR amongst parents of autistic/non-autistic children, focusing on various book genres (narrative, informational, alphabet, wordless). We also took parents' variables (age, education, self-efficacy) into consideration. Participants were 216 parents (183 mothers, 33 fathers): 74 with autistic children (Mage = 6.56, SD = 1.33), and 142 without an autism diagnosis (Mage = 4.79, SD = 1.30). Parents of autistic children read wordless picturebooks, narratives, and alphabet books significantly more frequently with their children than those without autism, with no significant differences in terms of overall frequency of SBR. Understanding how these variables relate and interact can facilitate the creation of programmes that more effectively support families' promotion of children's literacy development, especially children with autism.