It depends on your current skill level. Marlo's stuff isn't easy, but if you put forth sufficient effort, you shouldn't have many problems.
Revolutionary Card Technique was a series of pamphlets/booklets Marlo published. All of these small booklets were bound together to form the large book.
Here are the 11 original booklets, in case you were wondering.
- Fingertip Control
- Tabled Palm
- Action Palm
- Miracle Card Changes
- Faro Shuffle
- Faro Notes
- Side Steal
- Seconds, Centers, Bottoms
- Card Switches
- Multiple Shift
- Estimation