I have their Jobling book and three booklet set on 30s pressed glass, I think it's called something like Forgotten Glass. I'm currently in China at the moment, but, assuming I can dig them out when I get back to the UK in August, I am more than happy to send them to you free of charge.
The set of three booklets is stapled, while the Jobling book is spiral bound.
The three volume set has several misattributions and misspellings as well as some erroneous information regarding the production dates of Davidson's Cloud Glass (wrongly states that Davidson cloud wasn't produced post-war, just old stock was 'finished'). The illustrations are a mixture of catalogue drawings and photographs seemingly taken from the web. The quality of most images is very low, though enough for identification purposes. Some images have been stretched, altering their proportions, while one or two others appear to have been tinted/ coloured.
The Jobling book is better and illustrates most of the catalogued patterns, the only things missing are the fox and hart salts. The book also includes the same images of post-1937 registered designs as are seen in Baker and Crowe. The book is quite a useful identification guide, but has little text and what there is is unreferenced. Baker and Crowe is a far far better book and includes much more information and higher-quality images.