In Google Slides, the default slide layout is the Title slide; it consists of a text and subtitle placeholder. It is the first slide within the presentation and one of the most important slides when creating a presentation.  In Google Slides, there is a total of 11 Slide layouts, namely: Title Slide, Section Header, Title Only, Blank, Title and Body, Title and Two Columns, One Column Text, Main Point, Section Title and Description, Caption, and Big Number.