I watched the documentary "My Brilliant Brain: Born Genius" where they refer to the Abecedarian Project, in that investigation, a group of children that were exposed to early childhood education observed long-term benefits, such as higher scores in intelligence tests than those children that weren't exposed to the program.

Due to the importance in the findings on the Abecedarian Project, I also asked for any peer-reviewed or follow-up studies on the subject, but the only studies I could find were those listed on the project's page.

Also searching for related information it seems that there are multiple programs available by the name of The Abecedarian Approach that offer similar results. Among them, I am aware of at least one of them that has some of the investigators in the original project (Craig T. Ramey and Joseph J. Sparling).

There is also a YouTube channel by the New America foundation with some videos on the subject. Like for instance Too Much Evidence to Ignore: New Findings on the Impact of Quality Preschool at Scale

Also looking for related books, it seems all the investigators in the original project have published some literature on the subject:

Craig T. Ramey, Joseph Sparling, Isabelle Lewis, Margaret R. Burchinal, Elizabeth Pungello, Lynne Vernon-Feagans, and Barbara Hanna Wasik.

Based on all those findings, it seems there is enough information available for a Ph.D. or at least some specialization degree on early childhood education. So my question is what are the mainstream channels where new parents could reach people with all the information they need to put in practice the early childhood education.