Everything Explained book as a PDF?
 

I have the Lengel 10th Edition....wondering if there is a version available to download so I don't have to carry the actual text while travelling.

I keep a copy on my ipad. It's a useful reference, though does contain errors. It's downloadable. I believe they charge the same for the electronic version as the print, and when they have a new edition, they charge you full price for the next edition, even electronically. Color me unimpressed.