This was the third time I had used Digital Printing for a family history booklet. As before the service was highly efficient and I am very happy with the booklets produced. The website guidelines on setting out pages are very helpful. On a previous occasion I had asked DP which colour format I should use in preparing the print-ready pdf/X-1a files as my publishing software gave me a number of options. I used the same this time (Coated FOGRA39) and it was fine, but it could be helpful if DP gave some on-line information about this for the various papers that they offer.