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Book of Books (Peter & Sons) – Review & Demo Play
Book of Books from Peter & Sons play free demo version ▶ Casino Slot Review Book of Books ✔ Return (RTP) of online slots on July 2026 and play for real money✔
Book of Books Slot Overview
I went into Book of Books expecting a standard 'book of' ride, but Peter & Sons go their own way. The action sits in a mediaeval woodland with a trio of musicians, and the core is a 5x3 grid with 10 paylines that can expand to 5x4 and 5x5 in features. Near-miss pairs of book scatters feed a power up system for the next bonus. With a max potential of 10,000x, it stands above many entries in this genre.
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Book of Books Slot Information
Pay symbols keep the theme tidy. Lows are clubs, diamonds, spades, hearts and an axe, worth around 5 to 10x for five of a kind. Then come a hammer and a sword, followed by three quirky characters, capped by a king. Five premiums pay from 20 to 150x. A gold coin wild with a big W substitutes for pay symbols and shares the top value with the king when two to five land on a line.
Wins pay left to right, needing three lows or two premiums. The book scatter is separate from the wild, and drives features. During free spins, chosen symbols become expanding scatter pays, and wilds do not replace them. Expansions cover full reels and pay even when non-adjacent, with line wins tallied first. It's a neat twist that keeps the classic flavour while throwing in surprises I rate in a 'book of' game.
Book of Books Symbols and Paytable
| Symbol | Quantity | Payout |
|---|---|---|
 |
Wild | |
| 5 | x150 | |
| 4 | x40 | |
| 3 | x8 | |
| 2 | x1 | |
 |
5 | x150 |
| 4 | x40 | |
| 3 | x8 | |
| 2 | x1 | |
 |
5 | x80 |
| 4 | x20 | |
| 3 | x5 | |
| 2 | x0.5 | |
 |
5 | x50 |
| 4 | x12 | |
| 3 | x4 | |
| 2 | x0.5 | |
 |
5 | x20 |
| 4 | x9 | |
| 3 | x2 | |
| 2 | x0.5 | |
 |
5 | x20 |
| 4 | x6 | |
| 3 | x2 | |
| 2 | x0.5 | |
 |
5 | x10 |
| 4 | x4 | |
| 3 | x1.5 | |
 |
5 | x8 |
| 4 | x3 | |
| 3 | x1 | |
 |
5 | x8 |
| 4 | x3 | |
| 3 | x1 | |
 |
5 | x5 |
| 4 | x2 | |
| 3 | x0.5 | |
 |
5 | x5 |
| 4 | x2 | |
| 3 | x0.5 | |
 | Scatter | |
Book of Books Slot Features
I often toggle the Golden Bet before a session. It bumps the stake by 50% and increases the chance of triggering free spins, while the RTP remains the same. In the base game, landing exactly two book scatters adds a power up to the next bonus. Power ups can be one or two extra free spins, an extra expanding symbol, or an x1 to x2 expanding multiplier that multiplies wins from expanded symbols. Multipliers stack when collected.
Hit three or more scatters to trigger the Bonus Round. Three scatters start on a 5x3 grid with 10 paylines, four scatters move it to 5x4 with 20 paylines, and five scatters build a 5x5 with 40 paylines. You get seven free spins by default, and any power ups collected in the base game come with you. After the feature, everything resets, so timing a trigger after banking a few perks can make a visible difference to the session.
Retriggers add fuel. Two scatters grant one extra spin plus a random power up, three give three spins and a power up, four bring five spins, a power up and upgrade the layout to 5x4, while five award seven spins, a power up and push it to 5x5 if possible. Where offered, the Bonus Buy Menu lets you jump in at 120x for a 5x3 start, 250x for 5x4, or 500x for 5x5, though not in the UK for sure.
Free Spins in Book of Books
Free spins do not pick a single symbol up front. Instead, on every spin a meter shows which symbols can expand, up to a chunky set when you've stockpiled extras; I've seen rounds picking many at once. If enough land anywhere, they expand to fill their reels and pay as scatter wins after regular line wins. An important quirk is that expanded wins are settled on 10 lines regardless of grid size. Any expanding multiplier you've gathered applies to those expanded wins.
Book of Books Slot RTP, Maximum Payout & Volatility
Book of Books runs on a 96.1% model, with alternative RTP versions in some markets, so beware of adjustable RTP ranges. Volatility is high, the max win is 10,000x your stake, and the hit rate sits around 33.26% based on the published sheet. Stakes range from 0.10 to 50, and switching on Golden Bet lifts the stake by half without changing the math profile. It's a fair spread that suits testing the power up grind before pushing the pace.
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