Occupying a coveted position in niche information, assimilation and disbursal, SP Guide Publications has achieved greater excellence over the years since its inception in 1964. The frontrunner was Military Yearbook. Introduced in 1965 and later renamed SPís Military Yearbook, it was launched at a time when there was an acute dearth of any such references in India. The annual compendium has emerged an indispensable reference document for the armed forces. Next came the SPís Aviation in 1998. Initially introduced as a quarterly, it was converted into a bimonthly from early 2006. Since January 2008, SP's Aviation has turned into a monthly magazine with a unique mix and blend of civil and military aviation. In 2004, SPís came out with SPís Land Forces, a bimonthly for the ground forces. Following a natural sequence of events, SPís Naval Forces made its debut in 2006. Reponding to the explosive boom in the civil aviation industry, SP's AirBuz - a new bimonthly and the only civil aviation industry magazine from India - has now been launched to disseminate the analysis of various relevant issues at micro level. SPís MAI, launched on February 9, 2011, is a fortnightly publication dedicated to military, aerospace and internal security issues. The fortnightly covers new technologies; market information; security policies etc. SPís has also been very active in bringing out event-centric publications - SPís ShowNews - during exhibitions organised by the Indian Ministry of Defence.