Google-forms – How to allow users to enter only text in short questions in Google Form

Google doesn't currently support this feature - there is no way to save a form and have a user return to it later without submitting it.

That does raise an interesting point, though. You can have the user submit the survey and edit their responses later. Instead of forcing the user to page through the rest of the survey to get to the submit button, just add a multiple choice question at the bottom of each survey page (see example below): By using question logic, we can send survey-takers to the "Submit form" page which then gives them an "Edit this form" link that they'll need to save. Of course, when they come back, they will be starting from the beginning of the survey, but their previous answers will remain filled in.

If this all seems complicated (it is), you may want to try one of the paid survey services (I found SurveyMonkey to be a good value for the money, at least a few years ago), which make implementing this much easier (see SurveyMonkey info here).

Something I have done to accomplish this(sort of) is to make a certain number of identical questions. It could be 5 or 10 or whatever you see the max number being. Then I add a question at the end of each of those that asks if the person would like to add another.

So, in your case, you would have Book 1, Book 2, and Book 3. All are separate sections in the form. The person fills out Book 1 recommendation and says yes to adding another. They get routed to Book 2 section. They only have 2 recommendations so they answer no to adding another. They then get routed to the final section in the form which just contains a submit button.

I wish the ability to just add another question like you are asking for existed but until Google adds something like that, this should get the job done for you.