<https://www.chabad.org/library/tanya/tanya_cdo/aid/987819/jewish/Lessons-in-Tanya.htm>
<http://schema.org/name>
"Lessons in Tanya"
<https://www.chabad.org/library/tanya/tanya_cdo/aid/3821199/jewish/Igeret-HaKodesh.htm>