Along with the Simplified Manual, the Dictionary (and a copy of the DJS Manual which I bought by mistake!), I now have the Most Used Shorthand Words and Phrases book (as recommended by Carlos).
This book is brilliant! It’s boosted my confidence by providing answers the sort of “silly” questions I have, like: “I wonder if it’s correct to write L B D N for ‘will be done’?”(it is correct); it feels a bit like having access to a shorthand teacher!
There should be a Gregg Shorthand Simplified “Expanded” edition, with “Most Used” incorporated into the Manual, although I don’t think having both simplified and expanded in the title would be very helpful!