This semi-automatic book binding machine can be used to bind pages which is very important in libraries, govt. departments, offices, companies, lawyers, and book covers generally to maintain their books and records in good condition. This book binding machine is designed to performed operations semi-automatically. In term of the semi-automatic machine, it uses a different mechanism such as gripping mechanism, nut and bolt mechanism, folding mechanism, etc. This machine is designed and construct that can bind book which is in A4 size. It can minimize human energy consumption in order to bind books