Instruction manual and Reference book

Instruction manual noun - A manual usually accompanying a technical device and explaining how to install or operate it.

Reference book and instruction manual are semantically related in guide topic. In some cases you can use "Reference book" instead a noun phrase "Instruction manual", when it comes to topics like manual.

Reference book noun - A book to which you can refer for authoritative facts.

Instruction manual and reference book are semantically related in guide topic. You can use "Instruction manual" instead a noun phrase "Reference book", if it concerns topics such as manual.