There are lot of reference books available for each subject specified in Air Force Common Admission Test (AFCAT). Some of the books available for English are Objective General English by R. S. Aggarwal and Objective English for Competitive Examinations by Hari Prasad and Uma Sinha. General Knowledge and Current Affairs by RPH Editorial Board and Advance Objective General Knowledge by R. S. Aggarwal are the best books available to prepare for General Awareness. A Modern Approach to Verbal and Non-Verbal Reasoning and Numerical Ability and Mathematical Aptitude by Dr.A.B.Rao are the most popular books available to prepare for Reasoning and Numerical Ability section.

Books for General Awareness

• Advance Objective General Knowledge by R. S. Aggarwal
• General Knowledge 2013: Essential ‘Knowledge Capsule’ in General Awareness and Current Affairs by Manohar Pandey
• General Knowledge and Current Affairs by RPH Editorial Board
• General Knowledge and Current Affairs: Objective Type Questions by Khanna and Verma
• General Knowledge at A Glance by RPH Editorial Board
• General Knowledge Digest and General Studies by K.Mohan
• General Knowledge Encyclopaedia by Alok Gupta
• General Knowledge Manual by Barry ‘O’ Brien
• Handbook of General Knowledge by B. N. Ahuja
• Objective General Knowledge by Tarun Goyal
• Objective General Knowledge by Edgar Thorpe and Showick Thorpe

Books for English

• A Comprehensive Book of English Grammar by Dr.B.B. Jain
• Better Word Power by Vimal Bhatnagar
• Complete English Grammar by S.C. Gupta
• English Is Easy by Chetananand Singh
• Objective English for Competitive Examinations by Hari Prasad and Uma Sinha
• Objective General English by R. S. Aggarwal
• Objective General English by S.P. Bakshi
• Quick Learning Objective General English by R. S. Aggarwal
• Synonyms and Antonyms by Ashok K. Singh
• Word Power Made Easy by Norman Lewis
• Wren and Martin English Grammar

Books for Numerical Ability

• Arithmetic for Competitive Examinations by Jain and Sharma
• Magical Book on Quicker Maths by M Tyra
• Numerical Ability and Mathematical Aptitude by Dr.A.B.Rao
• Objective Arithmetic by R. S. Aggarwal
• Quick Arithmetics by Ashish Aggarwal
• Quicker Objective Arithmetic by Dr. Lal & Jain
• Super Quicker Arithmetic by R.Gupta
• The Pearson Guide to Objective Arithmetic for Competitive Examinations by Dinesh Khattar

Books for Reasoning and Military Aptitude

• A Modern Approach to Verbal and Non-Verbal Reasoning by R.S. Aggarwal
• A Modern Approach to Verbal Reasoning by R.S.Aggarwal
• An Advanced Approach to Data Interpretation by R. S. Aggarwal
• Analytical Reasoning by M.K.Pandey
• Non Verbal Reasoning by Javed
• Non Verbal Reasoning by R.S. Aggarwal
• Quantitative Aptitude by R.S. Aggarwal
• Quantitative Aptitude by T.S. Jain
• Quantitative Aptitude for Competitive Examinations by Abhijit Guha
• The Aptitude Test Workbook by Jim Barrett

Apart from these books available for each subject, candidates can refer AFCAT (Air Force Common Admission Test) Exam Guide for Flying and Technical Branch published by RPH Editorial Board. It is one of the most popular books available exclusively for AFCAT exam.