The series launched with three working papers and will release future papers as they are ready on a regular basis. It will feature cutting-edge research from our health, human services, and survey and statistical experts on compelling issues across Mathematica's diverse topic areas. In addition to providing access to our most current work, the working papers will share some of the in-depth analyses behind our other publications. The papers are intended to encourage discussion before final peer review and possible publication. In keeping with Mathematica's high standards of quality, all working papers undergo a rigorous internal quality review.

To get started, select an age range from the pull-down menu and click on it. Depending on the age range, different hotspots on the brain will appear. Click on a hotspot to reveal questions to find out how a baby's brain develops during this period of brain growth. You'll also learn what you can do to enrich a very young child's development.