Question: which company uses Pinborough, Sarah Sarah Pinborough?
SQL: SELECT "Company" FROM "1-20174050-23" WHERE "Author" = 'Pinborough, Sarah Sarah Pinborough';

Question: who the reader of title Department X?
SQL: SELECT "Reader" FROM "1-20174050-23" WHERE "Title" = 'Department X';

Question: how many notes were read by reader Varma, Idria Indira Varma?
SQL: SELECT COUNT("Notes") FROM "1-20174050-23" WHERE "Reader" = 'Varma, Idria Indira Varma';

Question: who is the reader on the Download/CD format of the title written by author Lidster, Joseph Joseph Lidster? 
SQL: SELECT "Reader" FROM "1-20174050-23" WHERE "Format" = 'Download/CD' AND "Author" = 'Lidster, Joseph Joseph Lidster';