Books about FTL speeds

Tachyons, Monopoles and Related Topics, Erasmo Recami (1978)

Faster Than Light: Superluminal Loopholes in Physics, by Nick Herbert (1989)

The Physics of Tachyons, by Ernst Wall (1995)

Special Relativity and Motion Faster Than Light, by Moses Fayngold and Roland Wengenmayr (2002)

Faster Than the Speed of Light, by Joao Magueijo  (2003)

Physics Beyond the Light Barrier: The Source of Parity Violation, Tachyons, and a Derivation of Standard Model Features, by Stephen Blaha (2007)

Faster Than Light: Quantum Mechanics And Relativity Reconsidered, by Ralph Sansbury  (2012)

Back-in-Time and Faster-than-Light Travel in General Relativity, By Serguei Krasnikov (2018)

Tachyon Drive: The Physics of Faster Than Light Travel, by Jamon Neilson (2018)

Tachyon Universe: Alternate Cosmology Based on FTL Particles, byTakaaki Musha (2019)