How to Say "essential handbook" in Spanish
The Spanish word for “essential handbook” is “biblia” — B2 level.
English → SpanishB2
nounB2
authoritative reference

Examples
Ese libro de cocina es la biblia de todos los chefs profesionales.
That cookbook is the bible for all professional chefs.
El manual de reparación se considera la biblia de los mecánicos.
The repair manual is considered the bible of mechanics.
Figurative Use
This meaning uses 'biblia' metaphorically. It means the book is so good and complete that it serves as the ultimate source of knowledge for that subject.
Related Translations
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