Picture cues are one of the first steps in learning how to read, once basic pre-reading strategies have been mastered. Picture cues are simply the link between the text on a page and the picture provided. Picture cues help children in decoding words that are unfamiliar to them. Picture cues are helpful as children are building a sight vocabulary as they can use the picture cue to give them hints about a word, and then decode it by using logical thinking.
For example, 'Zzzz- The Book of Sleep' contains a page with a picture of an owl with its eyes open, and a full moon in the background. Children who are learning how to read can use the picture cues of the owl and the moon to work out that the word starting with 'o' on the page is 'owl' and the word starting with 'm' is moon. This same page also provides a dark background and some stars in the sky, which gives children who are learning how to read further clues about the words on the page. They can deduce that the word starting with 'd' is 'dark' and that this is a describing word giving more information about the key noun in the first line 'sky'.
A teacher or assistant reading this book with a child who is learning how to read could give suitable prompts to guide their reading, and provide words for them as needed to keep the reading speed fast enough that meaning is not lost. Once a page has been 'solved' the teacher could then read the page again to ensure the child is able to comprehend the storyline and is therefore ready to continue.