includes the 7 frieze groups and 10 more spacial distributions:
- 6.1 Group p1 (o)
- 6.2 Group p2 (2222)
- 6.3 Group pm (**)
- 6.4 Group pg (××)
- 6.5 Group cm (*×)
- 6.6 Group pmm (*2222)
- 6.7 Group pmg (22*)
- 6.8 Group pgg (22×)
- 6.9 Group cmm (2*22)
- 6.10 Group p4 (442)
- 6.11 Group p4m (*442)
- 6.12 Group p4g (4*2)
- 6.13 Group p3 (333)
- 6.14 Group p3m1 (*333)
- 6.15 Group p31m (3*3)
- 6.16 Group p6 (632)
- 6.17 Group p6m (*632)
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