The "Little Books" are a set of books designed for interactive book reading between parents and children or teachers and students. The books use thematic topics familiar to children. They are written with high-frequency words and use simple phrases and sentences. They also have strong links between illustrations and text. One study of "Little Books" met the What Works Clearinghouse (WWC) evidence standards. The study included 325 kindergarten students from 12 rural and urban schools in Newfoundland, Canada. Three variations of using "Little Books" (at home only, at school only, and both at home and school) were compared to a comparison condition that did not use "Little Books." The WWC considers the extent of evidence for "Little Books" to be small for general reading achievement. No studies that met WWC standards with or without reservations addressed alphabetics, fluency, or comprehension. "Little Books" was found to have potentially positive effects on general reading achievement. (Contains 7 footnotes.) [This publication was produced by the What Works Clearinghouse. The following study is reviewed in this intervention report: Phillips, L. M., Norris, S. P., Mason, J. M., & Kerr, B. M. (1990). "Effect of early literacy intervention on kindergarten achievement" (Tech. Rep. No. 520). Champaign: University of Illinois at Urbana-Champaign, Center for the Study of Reading.]