noun
instruction book; manual; tutorial book
Refers to a book that teaches a skill or subject step by step, such as music, sports, or crafts.
ギターの教則本を買って練習している。
I bought a guitar instruction book and am practicing with it.
この教則本は初心者にもわかり
This tutorial book is easy to understand even for beginners.
手引書 is a guidebook or handbook, often more concise and reference-oriented than a step-by-step 教則本.
Compound of 教則 (teaching rules/principles) and 本 (book). The exact historical derivation is uncertain, but the spelling is conventionally associated with instructional materials.