The 113 'Pagoda' models are growing in popularity and value making all books on the subject more important than ever. Books dedicated to the 113 aren't available in large numbers and so far, this is the only model-specific 'guide' extant.
Unfortunately it is a book from the UK, a place where a good number of these cars have dissolved like Alka Seltzer tablet due to rust. This is the main focus of the book, though important, not the least of what you should know about an SL. Yes, there is more than rust prone areas discussed here but not much more. This is a small book and alot has been left out. There are Mercedes Benz buyers guides out there and most have tons more info on the 113. Also the excellent 'Original Mercedes SL' is a great book for the buyer-to-be even though it also covers the 190 and 300 SL's it is still, the best book on these cars and the only one that is detailed enough to discuss things like color codes. That book is out of print and getting expensive but in this case, 'original SL' is worth it and 'Mercedes Benz Pagoda' is not.