Magic Tricks

The first one is Actually Corinda's 13 Steps that Osterlind goes over.
13 Steps To Mentalism (6 DVDs) - (Price: $89.96)

The second one is Osterlind's own creating to mimic Corinda's book.
Osterlind's 13 Steps to Mentalism by Richard Osterlind (4 DVD SET) - (Price: $179.95)

Below is a side-by-side comparison of the steps in each set.

Corinda's 13 Steps to Mentalism (Presented by Richard Osterlind)
Step One - Swami Gimmick
Step Two - Pencil, Lip, Sound
Step Three - Mnemonics and Mental Systems
Step Four - Predictions
Step Five - Blindfold and X-Ray Eyes
Step Six - Billets Introduction
Step Seven - Book Tests
Step Eight - Two-Person Telepathy
Step Nine - Mediumistic Stunts
Step Ten - Card Tricks
Step Eleven - The Question and Answer Act
Step Twelve - Publicity Stunts
Step Thirteen - Patter and Presentation

Osterlind's 13 Steps to Mentalism (Created by Richard Osterlind)
I. Approach to Mentalism
II. Billets
III. Swami Gimmick
IV. Playing Cards
V. Book Tests
VI. Blindfolds
VII. Metal Bending
VIII. Stage Routines
IX. Close Up & Impromptu Routines
X. Cold Reading
XI. Q&A Routines
XII. Hypnotism & Suggestion
XIII. Muscle Reading

Thanks for a great answer!

Here is the answer I got from Jim Sisti when I asked the same question on Osterlind's website;

"Yes, there is a difference between the two. The Corinda set was one Richard did for L&L Publishing based on the classic book. The Penguin set represents Richard's personal "13 Steps" - his own suggestions on the needed steps to become a proficient mentalist. While there is a little overlap between the sets, it's probably useful to think of the two sets as one being based on Corinda's work and the other is based solely on Richard's own."

The original 13 Steps to mentalism DVD set covers material strictly from the book and follows those lessons closer. Osterlind's 13 Steps to Mentalism set however covers original material from his own "13 step" series, and not from the book.

I didn't get anything from either of these products.