Cambridge Encyclopedia of Child Development 
This is an is an authoritative, accessible and up-to-date account of all aspects of child development. Written by an international team of experts, it adopts an interdisciplinary approach and covers everything from prenatal development to education, pediatrics, neuroscience, theories and research methods to physical development, social development, cognitive development, psychopathology and parenting (2005).
Encyclopedia of Counseling
"By covering all of the major theories, approaches, and contemporary issues in counseling, the encyclopedia includes close to 600 entries. To enable the reader to understand the major approaches and themes within the field of counseling, the current encyclopedia has been divided into four volumes: (1) changes and challenges facing counseling, (2) personal and emotional counseling, (3) cross-cultural counseling, and (4) career counseling."
Handbook of Research on the Education of Young Children
This is an essential reference on research in early childhood education not only in the United States but throughout the world. It provides a comprehensive overview of important contemporary issues and the information necessary to make judgments about these issues (2006).
Philosophy of Education
The encyclopedia (1996) is designed to show the diversity of topics that contribute to the study of the philosophy of education. The core of the encyclopedia is its coverage of philosophical points of view that have had the greatest influence on educational thinking, from ancient Greece to the present.