The relationship between performance on various Piagetian and reading achievement tasks as examined through 26 correlational studies is reviewed. The following areas of concern are addressed: (1) sample characteristics of the subjects; (2) classification of the Piagetian tasks into five categories of logical operations, spatial concepts, general concrete operational batteries, formal operations, and conservation; (3) classification of reading tests as reading readiness, reading skills, and language tests; and (4) study results indicating a moderate relationship between the two tasks. (Author/HLM)