Alan Dean Foster's Humanx Commonwealth and Pip & Flinx Books

Alan Dean Foster's Humanx Commonwealth books, his ongoing Pip & Flinx series and the Icerigger books all take place in the same universe, with much cross referencing of events and places. These were not written in the order they take place in the Humanx universe by internal chronology. The list below is in order. Books that are not shown as belonging to a specific series are 'standalone' Humanx Commonwealth novels. 

Nor Crystal Tears (1982) 
Phylogenesis (1999) - Founding of the Commonwealth Trilogy
Dirge (2000) - Founding of the Commonwealth Trilogy
Diuturnity's Dawn (2002) - Founding of the Commonwealth Trilogy
Voyage to the City of the Dead (1984)
Midworld (1975)
Icerigger (1974) - Icerigger Trilogy
For Love of Mother-Not (1983) - Pip & Flinx
The Tar-Aiym Krang (1972) - Pip & Flinx
Mission to Moulokin (1979) - Icerigger Trilogy
Orphan Star (1977) - Pip & Flinx
The Deluge Drivers (1987) - Icerigger Trilogy
The End of the Matter (1977) - Pip & Flinx
Flinx in Flux (1988) - Pip & Flinx
Mid-Flinx (1995) - Pip & Flinx
Reunion (2001) - Pip & Flinx
Drowning World (2003)
Quofum (2008)
Flinx's Folly (2003) - Pip & Flinx
Sliding Scales (2004) - Pip & Flinx
Running from the Deity (2005) - Pip & Flinx
Bloodhype (1973) - Pip & Flinx
Trouble Magnet (2006) - Pip & Flinx
The Howling Stones (1997) 
Patrimony (2007) - Pip & Flinx
Flinx Transcendent (2009) - Pip & Flinx
Strange Music (2017) - Pip & Flinx
Sentenced to Prism (1985)
Cachalot (1980)