"यह किताब लंबी है।"

Translation: This book is long.

[DanaSavage]

Does this mean that the book is physically long, or that it is more metaphorically a long tale?

[vinay92]

I would take it to mean a physically long book but I suppose it can mean the latter too.

[Hadassah989835]

Why not 'Lamba' ?

[vinay92]

किताब is a feminine noun.

[Lyddy12345]

this is a long book?

[vinay92]

That would be यह (एक) लंबी किताब है।
(एक is optional)