Thisvolumeexploresthemultipleaspectsofmorphologicalcomplexity,investigatingprimarilywhethercertainaspectsofmorphologycanbeconsideredmorecomplexthanothers,andhowthatcomplexitycanbemeasured.Thebookopenswithadetailedintroductionfromtheeditorsthatcriticallyassessesthefoundationalassumptionsthatinformcontemporaryapproachestomorphologicalcomplexity.Inthechaptersthatfollow,thevolume’sexpertcontributorsapproachthetopicfromtypological,acquisitional,sociolinguistic,anddiachronicperspectives;theconcludingchapteroffersanoverviewofthesevariousapproaches,withafocusontheminimumdescriptionlengthprinciple.Theanalysesarebasedonrichempiricaldatafrombothwell-knownlanguagessuchasRussianandlesser-studiedlanguagesfromAfrica,Australia,andtheAmericas,aswellasexperimentaldatafromartificiallanguagelearning.