In this case the set of sections that come before the body of the book are known as the front matter.
How To Do Tamarindo
Nature, Wildlife & Adventure
A Guide To Costa Rica

Biodiversity
Wildlife
When the book is divided into numbered chapters, by convention the introduction and any other front-matter sections are unnumbered.
Abstract
Keeping the concept of the introduction the same, different documents have different styles to introduce the written text.
Preface
If a Userguide is written, the introduction is about the product. In a report, the introduction gives a summary about the report contents.
Sunset Sailing
All-Inclusive
Open Bar
Lunch Included
Swimming & Snorkeling
Wildlife Viewing
Music
Turtle & Estuary Tour
Pick Up & Drop Off
Guaranteed Turtle Sightings
Crocodile & Wildlife Viewing
Park Entrance Fee
Drinks & Water
ATV Rentals & Tours
Two-Hour Guided Tours
1/2 & Full Day ATV Rentals
Combo Tours Available
Deposit Required
Sunset Sailing
All-Inclusive
Open Bar
Lunch Included
Swimming & Snorkeling
Wildlife Viewing
Music
Turtle & Estuary Tour
Pick Up & Drop Off
Guaranteed Turtle Sightings
Crocodile & Wildlife Viewing
Park Entrance Fee
Drinks & Water
ATV Rentals & Tours
Two-Hour Guided Tours
1/2 & Full Day ATV Rentals
Combo Tours Available
Deposit Required
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