Contents: History of the Broad Autism Phenotype (BAP) concept
Contemporary conceptualizations
How and for what purpose we measure the BAP
The BAP in the general population: associations with social cognition, social skill, and types of interests
The prevalence of BAP in parents of children on the spectrum
The association between BAP in parents and clinical symptoms in their children
Differences between self-report and informant-reports of BAP traits
General conclusions about the BAP.