What are the books you are referencing?
Two of the three I got for Christmas can be seen underneath the open book where the T70 is in the last photo - which is this one -http://www.dk.com/uk/9780241201169-star-wars-the-force-awakens-incredible-cross-sections/
The fourth book suggested to me by my wife was this one - I chose not to take up the offer regardless of the impressive discount....