Did you know what typical minimum page count requirements are? I have a non-technical, more program management focused book with about 100 pages. Was told by a publisher it's too short... wondering how you approached that when self publishing, since your post mentions it's about 100-150 pages. Did you get any feedback from readers that it is too short?
I have not received feedback that my book was too short. In my own experience, I've rarely ever completed a technical book--in fact, I've often wished they were shorter!