Espinal continued college at Walden University in Pennsylvania.

He received a Ph.D. in education from Walden University in 1974.

He joined the Board of Directors of Walden University the following year.

From 1995 to 1999, he served as president of Walden University, where he pioneered distance learning methods.

Professor Iadevaia was also an adjunct professor for Walden University from 2006 to 2010.

The network's biggest contributor to education programs is Walden University.

Walden University was an historically black college in Nashville, Tennessee.

From 1865 to 1925, Walden University provided education and professional training to African Americans.

Walden University is a private for-profit institution of higher education.

Walden University sponsors several peer-reviewed and refereed academic journals.