~1,300 individual volumes, ~80,000 images, 8 years
Macross - Do You Remember Love - Data Bank
This is a very impressive book. Just over 400 pages and it has color pages printed with such high quality the images are incredible. About half the book is still frames used as storyboards for the entire film, a quarter is dedicated to design art for the characters and mechanics and the last section is full of staff interviews. Here's MacrossWorld's description of the book.
Please note that this is a massive book. The finished scan ended up at ~1.7Gb.
Again, thanks to Boinger for providing the book, this is now the pride of all the scans I've done.
Macross - Do You Remember Love - Data Bank (aka The Gold Book)