What is an errata?

An errata is a document that contains errors or mistakes in a previously published book, publication, or other written work. It serves as a correction sheet that identifies and corrects errors, such as typos, grammatical errors, factual errors, or omissions, in the original printed material. Errata are often included in subsequent printings and editions of the work to ensure that readers have access to the most accurate and up-to-date information. In some cases, the author may issue an apology or a statement explaining the reason for the errors. Errata may also be published online or distributed through other channels to ensure that readers are aware of the mistakes and can make necessary corrections.