The reading material we will draw on for this retreat is Part 1 & 2 of ‘What is the Sangha?’ This can be found in 'Complete Works Vol.3: The Three Jewels 2’. We won’t be studying directly all that material, but it is important to read to understand what Bhante means by the terms individual, group and spiritual community.
If you prefer to listen to talks, most of Part 1 & 2 of ‘What is the Sangha?’ are based on two lectures:
The Individual and the Spiritual Community by Sangharakshita | free buddhist audio
The Individual, the Group, and the Community by Sangharakshita | free buddhist audio