Working with Greenberg

Started reading the Greenberg book. I have to admit that I jumped straight into "Your First Program" on page 59 rather than starting at page 1. I am one of those who tend to skip through a book before coming back to reading it from start to finish in chapter-sequence, - although on this occasion it may not be too inappropriate to do so, as Greenberg himself exhorts you not to feel obliged to read the book "linearly", as he puts it. Having joined the project rather later than many others, I am conscience of the need to read-up on the book as quickly as possible