Tratar de = to be about

[hola]

ese libro me gusta porque trata de temas taurinos.

first off i thought ESTA meant THIS.
second it looks like she is saying THIS BOOK I LIKE BECAUSE IT TRIES FEARING BULLS. but i never knew that TRATAR DE had a hidden meaning. i always thought it meant TO TRY. but it also means TO BE ABOUT. up until now i thought there were only 2 words for ABOUT: ACERCA DE and SOBRE. now there are 3 words for ABOUT. this is what can make spanish frustrating at times. you almost have to know all the meanings of a verb or the sentence will confuse you. you will not know what the sentence is saying. so you really have to make sure the verb has only 1 definition or learn all of the definitions of the word. there are a ton of spanish words that have hidden definitions.