Create a new Android app - a Reference Library with books offline. \r\n\r\nThe app will be put on Google Play Store as a free app, to assist users who want to read, search and study the eBooks provided. \r\n\r\nKEY features [5 tabs]: \r\n\r\n-- LIBRARY [first tab]: this app needs an eBook reader. The hundreds of eBooks will be included for offline reading (likely create an OBB file). Organize library of books by author on this tab (note: there are 8 authors). Keep history of previously read books. (Able to text-to-speech TTS?) (Note: all books currently in PDF, DOCX, and DOCXT formats. Need to choose one format. Convert to a better format?) \r\n\r\n-- SEARCH [second tab]: able to search words and phrases. Search all books, search one author, or search one book. (Able to save and delete search results?)\r\n\r\n-- BOOKMARKS [third tab]: able to add several bookmarks. Able to delete bookmarks. (Able to edit bookmark captions?)\r\n\r\n-- NOTES [fourth tab]: able to add notes to a sentence or paragraph in book. Able to save several notes. Able to copy text - clipboard. (Able to share quotes on social media, e.g. Facebook?) \r\n\r\n-- SETTINGS [last tab]: Put key information such as copyright notice. Put a link to a website. Offer night theme. Able to auto-rotate screen using system setting, lock in portrait, or lock in landscape mode. Choose font. Font size increase or decrease. Able to keep screen awake using system setting, or keep screen on option. (Able to share or \"like\" app on social media, e.g. Facebook?) (In future will add other languages, now only offer English eBooks.) \r\n\r\nNo personal data collected from app users. No advertisements. Nothing for sale. Works with most Android apps (Android version 4.1 and up?) \r\n\r\nThis app will be used by thousands of users worldwide for the purpose of research and education. \r\n