# Updated SIMbook & Lesson Interface

The way users navigate SIMbooks has been updated to provide more information, options, and flexibility to all users.

The SIMbook Navigation and Control bar includes new options to improve the SIMbook viewing experience. The left side of the Navigation and Control bar has the option to view the **Table of Contents**, peruse the **Glossary**, or **Bookmark** the current page.

The right side of the bar has the option to **Search** the SIMbook, change the Font size, Line height, and enable or disable High Contrast via **Accessibility Options**, **Print** the current page, or **Exit** the SIMbook.

The **Forward**and **Backward**buttons now show the page title for the next and previous pages before you click them.

![SIMbook and Lesson User Interface](/files/CqoC4bi78DOwS8N93IDA)


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