There are several eBook eReader apps that to choose from Google Play Store and it's definitely up to you on which eReaders you are after.
We don't particularly have a guide or instructions for you since downloading and syncing will vary depending on the eReader app you choose. However, we do recommend these 15 eBook eReader apps for you. Please check the article below:
Note: If your download expires before you have a chance to download it, we will provide an alternative link via Hightail. Rest assured that the download process would still be the same as mentioned above. Please contact us at firstname.lastname@example.org and include your full name and Order ID.