This bulletin is the first in a series of summaries of research conducted in reading from 1955 to 1960. The publication includes both published and unpublished research during the 5-year period. The published research has been compiled largely from studies reported in educational periodicals. The unpublished research was made available through a survey conducted under the auspices of the U.S. Office of Education, with the cooperation of colleges, universities, and public school systems, which furnished information on studies undertaken in the various educational institutions. Chapter I, Summary of Research in the Teaching of Primary Reading, provides an overview of the studies reported in this bulletin: (1) Reading Readiness; (2) Age of Beginning Reading; (3) Methods of Teaching Reading; (4) Grouping for Reading Instruction; (5) Reading Achievement; (6) Reading Programs; (7) Reading Interests; (8) Reading Materials; (9) Comprehension; (10) Vocabulary; (11) Word Recognition; (12) Reading and Language Arts; (13) Reading and Intelligence; (14) Auditory Factors; (15) Reading and Physical Growth; (16) Reversals; (17) Kindergarten Attendance; (18) Language; and (19) Causes of Reading Difficulties. Chapter II, Studies in the Teaching of Primary Reading, describes the purpose of each of the studies, and the findings, results, or conclusion. An appendix provides the "Report of Research in Reading" Form. (Contains 114 footnotes.) [Best copy available has been provided.]