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Book · by Robert A. Heinlein

How many pages is The Door into Summer?

The Door into Summer by Robert A. Heinlein has a median of 189 pages across 11 English-language print editions with a recorded page count; the middle half of editions run 174 to 190 pages.

Median pages
189
11 editions counted
Range
159–304
shortest to longest edition
Reading time
3.3h
at 260 wpm (fiction average)
Words (est.)
52k
at 275 words per page

How long will The Door into Summer take you?

Starts at the fiction average of 260 words per minute and 275 words per page. Move the slider to your own speed.

Reading time
3 h 20 min
At 30 min a day
7 days
At 1 hour a day
4 days

Page count of every edition, by year

Each dot is one English-language print edition. Shaded: middle half of editions. Line: median.

15020025030019601970198019901957: 188 pages1959: 159 pages1966: 159 pages1970: 190 pages1973: 190 pages1974: 160 pages1979: 188 pages1985: 190 pages1986: 189 pages1986: 291 pages1997: 304 pagesmedian 189
150200250300196019801957: 188 pages1959: 159 pages1966: 159 pages1970: 190 pages1973: 190 pages1974: 160 pages1979: 188 pages1985: 190 pages1986: 189 pages1986: 291 pages1997: 304 pagesmedian 189
Open Library edition records (2026-09-30 dump).

Editions counted

The 11 editions behind the figures above, newest first. Open Library lists 50 editions of this work in all languages and formats.

YearPublisherFormatPagesOpen Library
1997Ballantine BooksPaperback304OL9318611M
1986Gollancz–189OL16252893M
1986Del ReyMass Market Paperback291OL9391356M
1985Gollancz–190OL22057132M
1979Gregg Press–188OL4411232M
1974New American LibraryPaperback160OL22789889M
1973Victor Gollancz–190OL15041527M
1970Pan Books–190OL14991182M

More by Robert A. Heinlein

All 12 books by Robert A. Heinlein with page counts

Questions

How many pages is The Door into Summer?
About 189 pages: that is the median of 11 English-language print editions on Open Library. Editions range from 159 to 304 pages.
How long does it take to read The Door into Summer?
About 3 h 20 min at 260 words per minute, assuming 275 words per page. At 30 minutes a day that is 7 days.
How many words is The Door into Summer?
Roughly 52,000 words, estimated from the median page count at 275 words per page. Open Library does not record word counts, so this is an estimate.

Data: Open Library monthly data dumps (works, editions, authors, reading log, ratings) (Open Library / Internet Archive); How many words do we read per minute? A review and meta-analysis of reading rate (Marc Brysbaert, Journal of Memory and Language 109 (2019)).