Fawne is a friend of mine and she is indeed an amazing resource of knowledge on Land Records in Ontario. I would urge those close enough to attend!
For those too far to go, there are some overviews and brief guides on Ontario Land Records at
http://olivetreegenealogy.com/can/ont/land.shtml Perhaps these brief explanations will also help:
CLRI (aka Ontario Land Record Index) summarizes land grants from sales of Crown Land, from Canada Company sales or leases and from Peter Robinson settlers' grants. Mmore at
http://olivetreegenealogy.com/can/ont/clri.shtml UCLP (Upper Canada Land Petitions) are the actual Petitions for land which were submitted in Upper Canada (Ontario) . They frequently contain information about the petitioner and his or her family. Loyalists and discharged soldiers often mentioned the regiment in which they served. More at
http://olivetreegenealogy.com/can/ont/uclp.shtml Land Books are basically a summary of land grants. They rarely contain more info than name, date and location. Sometimes they have little gems in the comment section. But they're helpful because if you can't find a petition in the UCLP it may be in the Land Book so at least you have some record of the event.
Township Papers are a miscellaneous group of land-related records have been arranged by township name, then by concession and lot or by town name and lot number. They're a mixed bag - they may contain correspondence re land, some petitions, copies of orders-in-council, etc
The above definitions/explanations are very brief. Ontario Land Records are a maze of challenges and wonderful details. I can't attend Fawne's workshop but if anyone else goes perhaps they would give us an idea of how it went and what you learned?