Which is the best book for the IB security assistant and executive exams?

Best books for IB ACIO for English: 1- A Mirror of Common Errors by AK Singh. 2- Word Power Made Easy by Normal Lewis. 3- Objective General English by SP Bakshi. 4- High School Grammar and Composition by Wren and Martin. Best Books for IB ACIO for Reasoning: 1- A Modern Approach to Verbal and No

Here is a list of the best Current Affairs books which can guide the aspirants for the competitive exams: •Manorama Yearbook. •Current Affairs by Arihant Experts. •India Yearbook - Publications Division Government of India. •Kiran's Current Affairs. •Quarterly Current Affairs. •Quick General Knowled