hi,

I assume you are asking about various job prospect after graduation, see there is some exams like bank p.o, clerk, ssc mts, ssc cgl exams and other state government recruitment comes where eligibility criteria is candidates need to pass graduate degree in any discipline from a recognized education board, now there is aptitude , logical and verbal reasoning, english and general awareness  questions comes in recruitment exams, some of the best books to follow is,

quantitative aptitude by rs agarwal,

lucent gks,

bankars adda magazines,

arihant experts books on reasoning practice.