Search for "early childhood education" and "theory" at Rowan University LibrariesThis search will return many types of items, including books. Books usually contain the most comprehensive descriptions of educational theory.
In this search, "early childhood education" is being searched in the Subject field. This helps identify sources that are specifically about early childhood education, rather than just mentioning it.
Most current books at Rowan are available as e-books, so you can look through and search them for sections on theory relevant to your learning goals.
To open an e-book from your list of results in this search, click on the title of the book, and then on any link under the "View Online" section. This will take you to the table of contents for the book, after you log in with your RowanID.