Because you are speaking about an Idea in general not in particular , for exemple, I love reading old books,any old books , so" old Books" take no article in this case , I Hope you understood my explanation for you You need to distinguish whether WE talking about an Idea in general or in particular. You could download application from play store ,it contains many rules about how to use articles with examples Best wishes.🍀 I'm from Algeria , nice to meet you and my level in English is average .
Hi, Sorry , but I should like to pay your attention to some mistakes in your message . Interstand is written like this understand Know , I think you mean now So your message should be " I understood now". Happy New Year 2020 🌌 Best wishes. Nice to meet you, I'm from Algeria , I like learning English and my level is average , and I'm doing my best to improve it. what about you? By the way , I loved your profile , do you know that one of my favorite animals is horse, specially black horses.🕊️🐎