An instruction book is a type of guide or manual that provides step-by-step information on how to use or do something. It helps you understand and follow the directions or procedures to use or assemble something correctly. Full definition
Scientists can guide the scissors to the place they want to cut in an organism's genetic instruction book with a guide RNA that matches DNA at the target site. (sciencenews.org)
It's funny how some of the recipes in those little instruction books become favorites. (highlandsranchfoodie.com)
A detailed instruction book with over 100 projects will guide young engineers through various working models. (thespruce.com)