The Barcode Book and Scanner is a free android application developed by Marebu that allows users to detect barcodes in real-time on their devices. The app can detect barcodes in any orientation and can also detect multiple barcodes at once.

This app reads a variety of 1D and 2D barcode formats, including EAN-13, EAN-8, UPC-A, UPC-E, Code-39, Code-93, Code-128, ITF, Codabar, QR Code, Data Matrix, PDF-417, and AZTEC. It can automatically parse QR Codes, Data Matrix, PDF-417, and Aztec values for supported formats such as URLs, contact information (VCARD, etc.), calendar events, email, phone, SMS, ISBN, WiFi, geo-location (latitude and longitude), and AAMVA driver license/ID.

The Barcode Book and Scanner is a useful tool for those who need to scan barcodes for work or personal use. The app's ability to detect multiple barcodes at once and in any orientation makes it a convenient option for users. However, the accuracy of the app's barcode detection may vary depending on the quality of the camera and the lighting conditions. Overall, The Barcode Book and Scanner is a reliable and easy-to-use barcode scanning application.