From the American Immigration Council:
Immigration 101: https://www.americanimmigrationcouncil.org/about-immigration/immigration-101/
How the US Immigration System Works: https://www.americanimmigrationcouncil.org/fact-sheet/how-united-states-immigration-system-works-fact-sheet/
Immigration Reform: https://www.americanimmigrationcouncil.org/about-immigration/immigration-reform/
Economic Impact: https://www.americanimmigrationcouncil.org/about-immigration/economic-impact/
And there are many other topics to explore on this site.
Immigrants in New Mexico: https://www.americanimmigrationcouncil.org/wp-content/uploads/2025/01/immigrants_in_new_mexico.pdf
Immigration Enforcement Data:
Current Detention Reports Nationwide: https://detentionreports.com/
Immigration Enforcement Dashboard: https://enforcementdashboard.com/
Detection Pregnancy Tracker: https://detentionpregnancytracker.com/
ICE Detention Mortality Tracker: https://detentionmortality.com/
Institute for Immigration Research History of American Immigration: https://iir.gmu.edu/historical-timeline
Nuts and Bolts of U.S. Immigration Law, an online course from the University of Pennsylvania offered through Coursera: https://www.coursera.org/learn/us-immigration-law
Classes offered by Santa Fe lawyer Allegra Love: https://www.legslovelawyer.com/community-education