where i found downloads books there is no option of download
Where to Find Downloaded eBooks:
Desktop computers:
Windows, macOS, Linux
Default download location
Windows: Generally the downloaded file is saved in the "Downloads" folder. You can quickly open File Explorer and navigate to the Downloads folder.
macOS: Likewise, it is kept by default in the "Downloads" folder which is under your user directory.
Browser Default Locations
Some browsers allow you to save your downloaded files somewhere else as a default location, check your browser's settings if the default location is different.
For Devices with Mobile Applications (Android, iOS)
Application: File Manager
Open your device's "File Manager" application.
Scroll through your device's directory and find a folder labeled "Downloads."
Application: Browser
Search for downloaded eBooks in the download history or settings of your browser application
Find the Downloaded eBook
Search Options for the Device
Search for keywords associated with the title or author of the eBook.
Check your cloud storage: If you have used cloud storage like Google Drive or Dropbox, the eBook might be synced there.
Check the download history of your browser: Most browsers keep a record of recently downloaded files.
Contact the provider: If you downloaded it from a specific website or platform, just contact their customer support to assist you.
If the eBook is still not found, you may describe where you downloaded it from and what device you are using.