Daffodils to Show and Grow (DTSG) was published in October 2016 and is updated approximately every four years.
The 2016 version of the DTSG is spiral wirebound, so that you can open it flat, a great advantage when looking up info for you show entries, or other needs. The DTSG has a handsome "thistle" colored cover with UV protection to help around water. The size of this booklet is approximately 5 1/2 x 8 1/2 inches.
ebook - There is an ebook version that instead of codes, spells out all the characteristics for daffodil. If you would like the Show and Grow for your Kindle or tablet, you can buy it for $8.50 from Amazon.com