If you use ReadEra and your library keeps growingOrganizing by category is the best way to keep everything easily accessible without breaking anything or duplicating files. Unlike sorting by folder alone, categories and collections allow you to group the same work into multiple groups (genre, series, author) and keep your library more flexible.
Furthermore, ReadEra offers a range of functions to locate, read and manage documents in a multitude of formats, with advantages such as automatic book detection, grouping by author and series, personalized collections, and even synchronization and reading aloud in its Premium version. Let's see, step by step, how to take advantage of these tools and what shortcuts to use for series, multiple authors, or different formats of the same book.
ReadEra options for sorting your library by category
ReadEra automatically detects all compatible books and documents you have on your device and displays them grouped by key criteria: authors, series, format, and language. From your library, you can also create thematic collections and reading lists (such as "To Be Read," "Read," or "Favorites") to categorize your content more granularly.
In practice, You can browse by sections such as Books and Documents, Authors, Series, Collections, and DownloadsEach one provides a different "view" of your library without physically moving files around, which is especially useful if you want to avoid duplicates and maintain simple file paths.
At the product philosophy level, ReadEra works without ads and without requiring you to register. on external services, and its app is fast and reliable even with large libraries. If you're into reading without restrictions or login screens, this detail is a plus.
Organize by categories with Collections (the most flexible way)
The Collections tool allows you to group by genre, theme or any personal criteria. without touching the file location. To do this, open the Library, go to the Collections section, and create a new collection with a name of your choice (for example: "Science Fiction," "Urban Fantasy," "Short Essay," or "Star Wars/X-Wing").
Once created, Add books in two ways: long-press the cover to open the context menu and select which collection to assign it to, or use the multi-select option to move multiple titles at once. If you organize by category, you can have the same title in multiple collections (e.g., "Star Wars," "X-Wing," and "Legends") without duplicating it.
Keep in mind that Collections do not create copies or take up double spaceThey're virtual labels or shelves: very practical when your priority is order, avoiding duplicates, and keeping storage under control.
Sort by folders on your device: when and how to do it
If you prefer a physical organization by folders On your phone, tablet, or e-reader, it's also possible. Access the Library, go to the Folders view, and navigate to the folder you want to manage (for example, a "Spanish" folder).
From there, long press the file you want to relocate to display the context menu and choose the option to manage the file. You can choose Copy or Move, and select the destination folder from the existing ones as needed.
If If you need a new folder, create one instantly., give it a name, and confirm to keep everything organized as you see fit. Once confirmed, the file will be in the selected folder and ReadEra will continue to detect it without any problems.
Important: If you choose Copy, you will be duplicating the file and consume twice as much space. If your goal is to organize without wasting storage, prioritize Move and, above all, complement it with collections and categories from the library.
Advanced file and metadata management from ReadEra
Beyond the library views, The document information section gives you complete control for each book: you see the exact file path, quickly access its folder, and can detect possible duplicates of the same title.
From that panel, You can copy, rename, delete, move or share the file in just a couple of taps. You can also edit information like the title, author, and series, review and adjust the synopsis, open the book for reading, activate text-to-speech, and create or edit bookmarks, quotes, and notes.
ReadEra Premium: Sync, TTS in the background, and a library to suit your taste
If you want to go one step further, ReadEra Premium adds synchronization of books, documents, progress, bookmarks, and appointments with Google Drive to keep everything up to date across multiple devices. It's ideal if you alternate between mobile and tablet reading and don't want to lose track.
Another advantage is that You can listen to books and documents in the background with text-to-speech, even with the screen locked. Perfect when you're cooking, in the car, or just want to rest your eyes while still moving forward.
To centralize your notes, The app brings together quotes, notes, bookmarks and reviews in a single section, and it also has a Dictionary section where it groups all the words looked up. If you underline, you have extra colors to highlight and maintain your coding system by topic or importance.
Visually, you can upload your own fonts and use them for reading; change the library view (full, brief, thumbnails, grid) and enable page thumbnails for quick, visual navigation through the current document.
If we talk about comfort, Reading options include color themes (day, night, sepia, console), screen orientation, brightness, margins, font size and type, thickness, line spacing, and even hyphenation. In PDF and DjVu, zooming is supported, and you can use single-column mode to split scanned pages.
It is also good to know that ReadEra optimizes memory usage: It doesn't duplicate files in an internal storage, detects duplicates, and retains your last page and bookmarks even if you move or delete files (when you redownload them, you'll recover their position). It also allows you to store data on an SD card.
If you like to alternate books, Multi-document mode lets you open several documents at once, use split screen, and jump between works via the system's recent apps button. The experience is fluid even with large libraries.
In format support, You can read and manage PDF, EPUB, DOC, DOCX, RTF, ODT, TXT, DjVu, FB2, CHM, MOBI and AZW3. Opens Word documents by indexing titles, displays footnotes in Epub/Mobi/Docx/FB2, and can read books and documents directly from zip files in certain formats such as FB2.
For extra peace of mind, ReadEra Premium offers a 30-day money-back guarantee, in case you want to try out the advanced features risk-free and see if they fit your reading and organizing style.
Practical tips for series, sagas, and multiple authors
When you manage large franchises or works with multiple authors, Collections are your best weapon to unify scattered titles. Create one collection per franchise (e.g., “Star Wars/Legends”), another for a sub-genre (e.g., “New Jedi Order”), and, if it makes sense, collections for short arcs (e.g., “X-Wing”).
To reflect the reading order, use numbering in the title or series field (01, 02, 03…) and let ReadEra group by Series; this way, you can sort by issue and see the entire chronology regardless of the author. In collections, the grid view with thumbnails can help you visually follow the order.
With works by various authors, Avoid long file paths with all the surnamesInstead of creating folders with long names, keep the file in a short folder (for example, by series or by a shortened main author) and manage multiple author memberships through collections or with the Author field itself in the metadata if you want to edit it.
If you use screen readers or TTS, look for short routes and few levels of folderReaders can read the entire route aloud, and it becomes tiresome; keeping the depth low and names concise reduces friction when navigating by voice.
Folders vs. Categories: How to Combine Them Without Losing Space
Using only folders has "common sense" advantages but you quickly run into practical limits: Loose books are crammed into “Standalones,” multi-author sagas are fragmented, and routes are stretched to the limits of the file system.
Instead, Categories/collections prevent duplicates and let you assign a book to multiple groups. without multiple copies. That's why the winning strategy is usually a mixed one: a simple and stable folder structure, and all the fine-grained classification logic with collections, authors, series, and formats within ReadEra.
For it to work, choose a very short base folder structure (for example: /Books/AuthorAbrev/ or /Books/Saga/) and from there manage the classification with the library tools. This way, you avoid path length problems while maintaining a reasonable physical order.
Remember the key detail: Copying creates duplicates and consumes twice the storageWhenever possible, use Move when organizing physically and rely on collections to have the same work in multiple contexts without taking up more space.
Search, navigate and maintain order day to day
When the library grows, Integrated search by title, author, series, format or language is your ally. It lets you get to the point in seconds without traversing endless lists, especially if you name your series well and use numbers.
Library navigation is versatile: sort by title, file name, format, size, date modified or readBrowse the Authors and Series sections for effortless grouping, use Downloads to locate the latest additions, and add new items to appropriate collections as soon as you open them.
During reading, You have quick access to settings, index, bookmarks, highlights, quotes, notes, and page history.You can navigate with the progress slider, see the total number of pages, and in chapters, pages per section, which is great for jumping between sections.
What if you use Calibre, Kobo or PocketBook?
If you combine ReadEra with other devices, Calibre can automatically create collections on Kobo When sending books using the extended driver (Kobo Touch Extended). In many cases, the previously recommended dual-connection is no longer necessary; ejecting the reader from Calibre usually works smoothly.
In PocketBook, You can organize by collections from the reader itself: Go to your library, go to Collections, create a new one, name it, and confirm. To add books, tap and hold the cover or select multiple books and assign them to an existing collection. It's very similar to ReadEra and prevents file duplication.
If you are considering automating exports from Calibre to a TTS device, take into account the format peculiaritiesThere are devices (like the Victor Reader Stream on older models) that only accept .rtf files with Word-specific headers, not the standard RTF generated by Pandoc; in that case, you can open and save the file in Word to get it working.
Multiple formats of the same book and audiobooks
It is common to download the same title in EPUB, MOBI, AZW3, PDF or RTF and want to keep them all. With ReadEra, that's no problem: organize once and then group by format if you need to locate a specific variant.
A convenient tactic is choose a "main" format for reading (usually EPUB for its typographic flexibility) and create a "File/Formats" collection to add the alternate copies. This way, you can find them without them getting mixed up in your usual reading flow.
For audiobooks and text, You can maintain separate structures by content type If your audio player requires a specific folder and track order. In ReadEra, however, you can group the text into its collection and leave a note in the description or in a specific collection reminding you that you also have the audiobook.
If you are concerned about duplicate detection, ReadEra helps identify duplicate files, and its file management (copy, move, rename, delete, share) makes it easy to leave a single “good” copy wherever needed, maintaining metadata and progress.
Managing folders and files on the device
From the Folders section, You can see how many compatible books and documents there are in each directory. and perform key actions: view, create, copy, delete, and move folders to comfortably shape your physical structure.
As for individual files, management from the document record It's comprehensive: location access, title/author/series editing, annotations, TTS, and sharing tools if you want to send the book to another device.
Reading details that make a difference
In fluid text formats, ReadEra displays footnotes at the bottom of the page Paper-style, making it more natural to read. In scanned documents, its single-column mode splits double-page spreads into two, ideal for magazine-style PDFs.
If you like to customize, Upload your fonts and adjust thickness, line spacing, and hyphenation It lets you fine-tune readability based on your habits. Along with color themes and margin and brightness controls, it's easy to create a comfortable environment for long sessions.
Organizing by categories in ReadEra becomes a simple and powerful process.Use collections for fine-grained sorting without duplicating files, rely on authors/series/formats for logical navigation, and reserve folder switching for a concise and stable physical structure. Premium's reading, management, and, if you prefer, synchronization and TTS features round out a complete solution for keeping your library organized and accessible.