The Original Codex Silenda - DIY 3D Wooden Puzzle Book with Mechanical Locks - Brain Teaser Challenge Inspired by DaVinci for Teens & Adults - Perfect for STEM Learning, Gift Giving & Family Game Nights

Prior to starting assembly, it would have been very helpful if you included a link to an overview video showing the finished product. While assembling it, it very much feels as if the text of each page is going in backwards in relation to how a book would be read. I still haven't figured that out and just hope it reads like a book when I get it assembled.The biggest problem is the video instruction needs to have an audio track. I don't care if you need to make it for twenty languages, an audio explanation is WAY more important that some guy pointing to a part and having to guess what he's going to do with it. Also the video instructions do not match the printed instructions, sometimes in really important steps.I have only assembled two pages so I may be back with more.On page 32, step 1 of the Rotating Max, the silhouette drawing of Part 201 is incorrect, showing the outline of part 211 instead of 201. My bag of E5 dowels is missing so I will have to buy and cut them myself (Quality Control - very important). Page 31, the piece counts of E2, E3, E4, E5 and E6 are showing zero pieces. If there are no pieces to be used, you should not show the part, it's just really confusing. And yet, it turns out that the step actually does require eight E5 dowels. So I have to stop this assembly, go back to Amazon and pick up some 4mm doweling! Sheesh! not good.I will get it together, it will be a great puzzle, but it really does not need to be this confusing and you should have proofread the printed instructions. I am pretty good at following instructions if they are printed IN DETAIL, and I can follow an instruction video if it has sound. This is very difficult to assemble and it really does not need to be.