Before i'll decide whether this book i choose or not, i always read the review. Then i'll hunting the book which booming be discussed in public. In spite of that, i'll read book based on kind of book (like novel, biography, text book, etc) deal with my mood. When i need a lot knowledge, i read text book. But, when i need refreshing, i read novel. Then, content or topic of book. I usually read book about the interest of mathematics for text book. For novel, my topic favorite is romantic, love, religious, the best friend. The last, friend's recommendation impact in my choice. (i'm trying to speak English, please Ms give me correction or suggestion in order to i can speak English well enough)