# A Perfect Vacuum

> collection of reviews of non-existent books, by Lem

**Wikidata**: [Q546271](https://www.wikidata.org/wiki/Q546271)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/A_Perfect_Vacuum)  
**Source**: https://4ort.xyz/entity/a-perfect-vacuum


## References

1. Internet Speculative Fiction Database
2. Freebase Data Dumps. 2013