The chart training guide is published as a service for pilots training with Jeppesen charts. It is intended for reference only and includes some of the most commonly used symbology. Not all symbology is included with this guide. This guide is revised regularly; however, some variance may exist between this guide and current chart services. These may be the result of one or more of the following: chart issuance dates, timely application of changes received from governing agencies and / or the method of representing such information. Some of the charts used in this guide are based on a fictitious location. The chart training guide has been designed as supplementary training material and is not intended for navigation.