U can try rc mukherjee,an indian author for preliminary level.and schaum publishers for higher level.

Molarity exercises
Is there any way to export images from my collections, where the images are automatically placed into a folder tree that mimics their collections?

I'm not comfortable with having all that organization data locked away in Lightroom -- I switch computers a lot and oftentimes data sidecars like Lightroom's DB get lost in the shuffle. I'd like to export all my images into folders that can then be fed into Crashplan, etc.

Ideally I want it to archive only images in each collection that match a Smart search criteria, like 4+ stars.

jF's Collection Publisher plugin looks nice but it has its own collection tree that must be maintained separately. This solution is not DRY (Don't Repeat Yourself) enough for me: I don't want to maintain two separate hierarchies of collections.

EDIT: To clarify, let's assume I have images sorted in collections as such:

&lt; Collection root &gt;
    |- California
    |  |- Surfers
    |  |- Hipsters
    |  |- Beaches
    |- Holland
       |- Windmills
       |- Stroopwaffels
       |- Coffeeshops
       |- Grachten


I am looking for something that exports images into a folder tree identical to the one above, without any extra maintenance or work. So JPG or TIFF files would be exported/published to:

/Users/tom/Photography/California/Surfers
/Users/tom/Photography/California/Hipsters
/Users/tom/Photography/California/Beaches
/Users/tom/Photography/Holland/Windmills
/Users/tom/Photography/Holland/Stroopwaffels
/Users/tom/Photography/Holland/Coffeeshops
/Users/tom/Photography/Holland/Grachten


In accordance with the collections they live in in LR. jF's plugin is nice but it works from  its own collection tree, which makes it unsuitable for this kind of request.
