Conspicuous volume of doubly fine drugs swallowed by company board with caution (6-5,4)

'conspicuous volume' is the definition.
(I know that coffee-table book are usually conspicuous)

'doubly fine drugs swallowed by company board with caution' is the wordplay.
'doubly fine drugs' becomes 'FF EE' (f is short for fine, e is slang for ecstasy).
'swallowed by' is an insertion indicator.
'company' becomes 'co' (abbreviation).
'board with' becomes 'table' (both can mean food. I am not sure about the 'with' bit.).
'caution' becomes 'book' (a footballer receiving a yellow card gets 'booked').
'co'+'table'='cotable'
'ffee' going into 'cotable' is 'coffeetable'.
'coffeetable'+'book'='COFFEE-TABLE BOOK'

'of' is the link.

Can you help me to learn more?