To investigate whether young children with isolated expressive language delay benefit from early intervention with a simple language toolkit and brief instructions provided to their caregivers.

We hypothesize that children whose families are provided the language toolkit will develop more words over the subsequent 3 months.

Inclusion Criteria:

• Age 14.5 to 18.5 months
• Below average expressive language
• Otherwise normal development

Exclusion Criteria:

• Other developmental delay
• Non-English primary language