For English Encyclopedia: General Knowledge is the most effective way to increase the IQ of a student. The universal Encyclopedia of the world is a good book for students who want information on all kinds of subjects in one book. This book has proven to be useful to many students in the long run. The Student's Encyclopedia of General Knowledge can be used by students studying in class three up to the seventh standard. The quality of information in this book is top notch and readers find it interesting.Students can find information on science, earth, sports persons, and any famous people too.