Engineering intricacies

         While reading for my final sem exams, many universally important thoughts started crossing my head and bewilder it. We read from different authors book, whose name become totally gibberish on our tongue. Basically the Engineering subject books are classified into - Local author and Foreign author. Nothing much of a difference. The Foreign author is the person from abroad who usually studies and publishes a book, which is made as the syllabus textbook by the Universities and which in turn are remade by another author from India and published such that they are crisper and readable by an Indian student. Lets analyze the intricacies of both these kinda books which play a vital role in the 4 yrs of an engineering student.
        Local author gives the advantage of  mugging up soon. But there is no way of gaining knowledge out of it. Each sentence will be incoherent & no meaning can be successfully attained from it. The silly grammatical mistakes have always been everlasting in edition after edition of these books. There is sometimes a section called "Important definitions" at the end of each unit, in which some of them wont actually be definitions but their applications & uses. Something i like about a local author book is that they usually have the past year question papers at the back. Hence no need to buy a question bank separately.
        Whereas, a foreign author gives detailed explanations for each topic - too detailed such that when u wanna know the definition of a topic, u can find it only after 5-6 paras in that topic. Sometimes even after a page or so. The most irritating thing is when we are proceeding on with a derivation from chapter 4 interestingly, there will be a line saying "The relation is obtained from section 9.5". Are we supposed to jump to chapter 9 and come back again? One good thing appreciable in foreign author books are that they have a glossary at the back. It always makes it easier to find a topic from syllabus quickly.
         I am a person who needs to understand something in order to learn something & at the same time, i start studying only on the night before the exam. So i usually have both of them - foreign author for understanding & local author for reading soon. Yet my unique idea doesnt always aid me, for i'll be left utterly confused at the end of the day as a result of reading 2 versions of a single concept.