550 pages of reprints of slide rule instructions, for the use of collectors, educators and students. All ephemera is currently archived in the International Slide Rule Museum Library. Instruction manuals, for the most part, are no longer available, Slide rule production ended in the mid 1970's and instruction manuals have deteriorated and are rapidly disappearing over time. The slide rule models themselves , now considered vintage math instruments, are still in abundance, and in the hands of private collections, museums, and many family homes. These volumes, organized by manufacturers, provide instructions for the most popular models, as well as some special designs. The scans from the faded and wrinkled manuals, have been "restored" digitally in order improve their clarity to provide decent black printing on white pages. All "noise", speckles, staple marks, etc., have been cleaned off the original scans, to improve the reader's experience. Where required, as in this volume, permissions have been obtained from manufacturers that are still in existence. Military & Aerospace Instruction Books in Volume 18: Book 1 – Manual of Operating Instructions for the Air Navigation and Bombing Computer, Type CPU-48 P (VAID). Made by Felsenthal Instruments Co., May 1964. Book 2 – Handbook of Military Instruments, 191 MKVI APP OBS CF Fire Slide Rule (Artillery). British War Office (Only slide rule related pages). Book 3 – Richardson Slide Rule Simplified – Directions for Using the Military Slide Rule Model 1917 (Artillery). (By Geo. Richardson - only slide rule related pages). Book 4 – Directions for the Use of Artillery Instruments, Pamphlet No. 3 - The Slide Rule – 1937. British Army War Office. Book 5 – Small Arms Training Volume I, Pamphlet No.7 - .303-inch Vickers Machine Gun, MKIII Slide Rule – 1939. British/Australian Army. Book 6 – TM 6-240 Military Slide Rule – 1945. 10-inch for Field Artillery. Made by Keuffel & Esser (OEM) for American Blueprint. U.S. War Department. Book 7– TM 6-240 Military Slide Rule – 1961. Field Artillery. Made by Pickett. U.S. Department of the Army. Book 8 – TM 9-524 12-inch Graphical Firing Tables Slide Rule – 1944. Field Artillery. Made by Keuffel & Esser. U.S. War Department. Book 9 – TM 6-526 M4 Graphical Firing Tables Slide Rule – 1944. Field Artillery. Made by Keuffel & Esser. U.S. War Department. Book 10 – TM 9-1610 M1 Flank Spotting Instrument Graphical Circular Slide Rule – 1941. Field Artillery. Made by Bausch & Lomb Optical Company. U.S. War Department. 16 pages. Book 11 – M520-700 How to Use U.S. Air Force Aerial Photo Slide Rule. Model 520 – Type-A1 (10-inch) and Model 700 – Type-A2 (6-inch). Air Material Command. 1951. Book 12 – The Martin Space Rule – Handbook of Instructions and Basic Space Data for Scientists and Engineers. Martin Co. 1962. Book 13– EM-906 – A Course in the Slide Rule and Logarithms, U.S. Armed Forces War Department for the use of Army, Navy, Marine Corps and Coast Guard personel. 1938, 1944.