Hi Everyone! 👋 You asked about useful resourсes I use, so just for your information: (this is not an advertisement, just advice and an answer to your questions coming to the bot) 1. You can convert any book format to the one you need (from epub to pdf, from pdf to epb, etc) online FOR FREE here - https://convertio.co/ru/ It takes less than 1 min. 2. Download any SUBS here - https://subscene.com. It's also free